Home / 126,192.12-173,790.80-123,436.52

Finding the Fourth Proportional to 126,192.12, 173,790.80 and 123,436.52

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Solution

The fourth proportional to 126,192.12, 173,790.80 and 123,436.52 is: 169,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,192.12 : 173,790.80 = 123,436.52 : x
  2. Step 2: Convert to fraction form
    126,192.12/173,790.80 = 123,436.52/x
  3. Step 3: Cross multiply
    126,192.12x = 173,790.80 × 123,436.52
  4. Step 4: Simplify right side
    126,192.12x = 21,452,131,560.02
  5. Step 5: Solve for x
    x = 21,452,131,560.02/126,192.12
  6. Step 6: Final answer
    x = 169,995.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.