| ( | X | + | 1 2 | ) | × | 6 5 | × | 18 25 | = | 63 100 |
| Left side of the equation = | ( | X | + | 1 2 | ) | × | 108 125 |
| ( | X | + | 1 2 | ) | × | 108 125 | = | 63 100 |
| Left side of the equation = | X | × | 108 125 | + | 1 2 | × | 108 125 |
| = | X | × | 108 125 | + | 54 125 |
108 125 | X | + | 54 125 | = | 63 100 |
108 125 | X | = | 63 100 | − | 54 125 |
108 125 | X | = | 99 500 |
| X | = | 99 500 | ÷ | 108 125 |
| = | 99 500 | × | 125 108 |
| = | 11 4 | × | 1 12 |
| X | = | 11 48 |
| X | = | 0.229167 |