What is 10.2 percent of 8.7 - 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 8.7 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 8.7 is 100%, so we can write it down as 8.7=100%.
4. We know, that x is 10.2% of the output value, so we can write it down as x=10.2%.
5. Now we have two simple equations:
1) 8.7=100%
2) x=10.2%
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:
8.7/x=100%/10.2%
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 10.2% of 8.7

8.7/x=100/10.2
(8.7/x)*x=(100/10.2)*x       - we multiply both sides of the equation by x
8.7=9.8039215686275*x       - we divide both sides of the equation by (9.8039215686275) to get x
8.7/9.8039215686275=x
0.8874=x
x=0.8874

now we have:
10.2% of 8.7=0.8874