Home / 123,691.38-170,694.17-67,102.75

Finding the Fourth Proportional to 123,691.38, 170,694.17 and 67,102.75

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Solution

The fourth proportional to 123,691.38, 170,694.17 and 67,102.75 is: 92,601.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,691.38 : 170,694.17 = 67,102.75 : x
  2. Step 2: Convert to fraction form
    123,691.38/170,694.17 = 67,102.75/x
  3. Step 3: Cross multiply
    123,691.38x = 170,694.17 × 67,102.75
  4. Step 4: Simplify right side
    123,691.38x = 11,454,048,215.97
  5. Step 5: Solve for x
    x = 11,454,048,215.97/123,691.38
  6. Step 6: Final answer
    x = 92,601.83

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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.