| ( | 1 | x | ) | ÷ | ( | 1 | + | x | ) | = | 139 250 |
| Multiply both sides of the equation by: | ( | 1 | + | x | ) |
| ( | 1 | x | ) | = | 139 250 | ( | 1 | + | x | ) |
| 1 | x | = | 139 250 | ( | 1 | + | x | ) |
| 1 | x | = | 139 250 | × | 1 | + | 139 250 | x |
| 1 | x | = | 139 250 | + | 139 250 | x |
| 1 | x | − | 139 250 | x | = | 139 250 |
111 250 | x | = | 139 250 |
| x | = | 139 250 | ÷ | 111 250 |
| = | 139 250 | × | 250 111 |
| = | 139 | × | 1 111 |
| x | = | 139 111 |
| x | = | 1.252252 |