Determining percentages is an important mathematical skill used in many real-world situations.
In this article, we will explore the question “120 is what percent of 100?” step-by-step and discuss various methods to find the percentage.
Utilizing the “X is What Percent of Y Calculator”,we can compute that 120 is 120% of 100.
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Step-by-Step Solution: 120 is What Percent of 100?
Now that we know we want to find 120 is what percent of 100? , let’s look at two different step-by-step methods we can use to solve this percentage problem. Each approach arrives at the same solution, but understanding different ways to think through the math builds flexibility and deeper learning.
Method 1: Convert Ratio to Percentage
Fractions consist of a numerator and denominator. Fractions consist of a numerator and denominator. The numerator represents the number of pieces being considered, while the denominator is the total number of pieces that make up the whole.
“Percent” means “per hundred”. So percent is another way to express a fraction where the denominator is always 100.
For example, the percentage 50% indicates we have 50 out of a total of 100 pieces. 50% can be rewritten as the fraction 50/100, since we have 50 parts out of 100 total parts.
In summary, to convert a fraction to a percentage, we multiply the numerator and denominator by the same value so that the denominator becomes 100. Once we have a fraction with a denominator of 100, the numerator gives us the percentage amount. This allows any fraction to be converted to an equivalent percentage based on the concept of “out of 100”.
Let’s apply this understanding to calculate “120 is what percent of 100?”.
Step1: Write the Ratio as a Fraction
First, we can express “120 is what percent of 100?” as the fraction 120/100.
120 of 100 can be written as: 120 100
Step 2: Find the Number to Multiply to Get a Denominator of 100
We want the denominator to be 100, so need to multiply by a number that makes 100 into 100
To find this number, divide 100 by 100:
100 100 = 1
Step 3: Multiply the Fraction by the Number from Step 2
Multiply both the numerator and denominator by 1:
120100 x 11
= 120 x 1100 x 1
= 120100
Step 4: The Numerator is Now the Percentage
Since our new denominator is 100, the numerator 120 represents the percentage
This step-by-step method of converting the ratio 120 : 100 to a fraction and then a percentage with a denominator of 100 allows us to calculate that 120 is 120% of 100.
Method 2: Converting Fractions to Decimals and Percents
You can also use division to convert a fraction to a decimal and then to a percentage.
Step 1: Write the Fraction
Start with the original fraction:
120 of 100 can be written as: 120 100
Step 2: Divide the Numerator by the Denominator
Use long division to divide the numerator by the denominator:
120 100 = 1.2
Step 3: Multiply the Decimal by 100
To convert the decimal to a percentage, multiply it by 100:
1.2 x 100 = 120%
Therefore, by dividing 120/100 to 1.2 and then multiplying by 100, the result is 120%
Following this process carefully of dividing the fraction, multiplying the decimal by 100, and interpreting the result as a percentage provides us another method to find that 120 is 120% of 100.
Comparing the Two Methods
Let’s summarize the two methods we used to find the percentage “120 is what percent of 100?”:
Method | Description | Steps |
---|---|---|
Convert Ratio to Percentage | Converts the ratio to a fraction, then multiplies to make the denominator 100 | 1. Write ratio as fraction 2. Multiply to make denominator 100 3. Numerator is the percentage |
Convert Fraction to Decimal and Percentage | Divides the fraction to a decimal, then multiplies the decimal by 100 | 1. Write the fraction 2. Divide numerator by denominator 3. Multiply decimal by 100 4. Result is the percentage |
The ratio to percentage method directly converts the ratio 120 : 100 to an equivalent percentage fraction. The fraction to decimal method indirectly converts the fraction 120/100 to a decimal and then a percentage.
p>Both methods follow a clear step-by-step procedure to arrive at the same result that 120 is 120% of 100. Understanding multiple approaches builds flexibility in thinking through percentage problems.
Standard Percentage of 100 Calculation Examples
Now that we have calculated that 120 is 120% of 100, let’s explore what 5%, 10%, up to 95% of 100 would be.
5 is 5% of 100
10 is 10% of 100
15 is 15% of 100
20 is 20% of 100
25 is 25% of 100
30 is 30% of 100
35 is 35% of 100
40 is 40% of 100
45 is 45% of 100
50 is 50% of 100
55 is 55% of 100
60 is 60% of 100
65 is 65% of 100
70 is 70% of 100
75 is 75% of 100
80 is 80% of 100
85 is 85% of 100
90 is 90% of 100
95 is 95% of 100
100 is 100% of 100
Conclusion
Finding percentages is an essential mathematical skill used in daily life for calculations of discounts, taxes, tips, interest rates, test scores, and more. In this article, we explored the specific question “120 is what percent of 100?” and discussed two methods to solve it – converting a ratio to a percentage and converting a fraction to a decimal and percentage. Both methods carefully followed arrive at the solution that 120 is 120% of 100.
We also looked at calculating a range of standard percentages from 5% to 95% of the total number 100. Practicing these types of percentage calculations helps improve mathematical proficiency and comfort applying different techniques.