What is 75 percent of 108.45 - 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 108.45 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 108.45 is 100%, so we can write it down as 108.45=100%.
4. We know, that x is 75% of the output value, so we can write it down as x=75%.
5. Now we have two simple equations:
1) 108.45=100%
2) x=75%
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:
108.45/x=100%/75%
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 75% of 108.45

108.45/x=100/75
(108.45/x)*x=(100/75)*x       - we multiply both sides of the equation by x
108.45=1.3333333333333*x       - we divide both sides of the equation by (1.3333333333333) to get x
108.45/1.3333333333333=x
81.3375=x
x=81.3375

now we have:
75% of 108.45=81.3375