Home / 126,761.28-175,049.10-81,517.83

Finding the Fourth Proportional to 126,761.28, 175,049.10 and 81,517.83

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Solution

The fourth proportional to 126,761.28, 175,049.10 and 81,517.83 is: 112,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,761.28 : 175,049.10 = 81,517.83 : x
  2. Step 2: Convert to fraction form
    126,761.28/175,049.10 = 81,517.83/x
  3. Step 3: Cross multiply
    126,761.28x = 175,049.10 × 81,517.83
  4. Step 4: Simplify right side
    126,761.28x = 14,269,622,775.45
  5. Step 5: Solve for x
    x = 14,269,622,775.45/126,761.28
  6. Step 6: Final answer
    x = 112,570.83

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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.