72 is what percent of 109? (What percent of 109 is 72?)

72 is what percent of 109?

The question here is "72 is what percent of 109?" which is the same as "What percent of 109 is 72?" This math word problem is asking "what percent" so we know that the answer should be a percent. Specifically, what percent (x) of 109 equals 72.

The problem is therefore x% of 109 = 72 which can be written as a function:

		x ∗ 109
		100

= 72

And when we solve the function above for x, we get 66.055. The answer to "72 is what percent of 109?" is therefore:

66.055%

How can we know the answer is correct? We know the answer is correct because 66.055 percent of 109 is 72.

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