| x | × | 5 | ( | 120 | ÷ | 60000 | + | 180 | ÷ | 90000 | + | 60 | ÷ | 102000 | ) | = | 1 |
| Left side of the equation = | x | × | 5 | × | 120 | ÷ | 60000 | + | x | × | 5 | × | 180 | ÷ | 90000 | + | x | × | 5 | × | 60 | ÷ | 102000 |
| = | x | × | 1 100 | + | x | × | 1 100 | + | x | × | 1 340 |
| = | 39 1700 | x |
39 1700 | x | = | 1 |
| x | = | 1 | ÷ | 39 1700 |
| = | 1 | × | 1700 39 |
| x | = | 1700 39 |
| x | = | 43.589744 |