What is 17.2 percent of 75 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 75 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 75 is 100%, so we can write it down as 75=100%.
4. We know, that x is 17.2% of the output value, so we can write it down as x=17.2%.
5. Now we have two simple equations:
1) 75=100%
2) x=17.2%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
75/x=100%/17.2%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 17.2% of 75

75/x=100/17.2
(75/x)*x=(100/17.2)*x       - we multiply both sides of the equation by x
75=5.8139534883721*x       - we divide both sides of the equation by (5.8139534883721) to get x
75/5.8139534883721=x
12.9=x
x=12.9

now we have:
17.2% of 75=12.9