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Finding the Fourth Proportional to 123,760.29, 170,789.36 and 67,171.68

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Solution

The fourth proportional to 123,760.29, 170,789.36 and 67,171.68 is: 92,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,760.29 : 170,789.36 = 67,171.68 : x
  2. Step 2: Convert to fraction form
    123,760.29/170,789.36 = 67,171.68/x
  3. Step 3: Cross multiply
    123,760.29x = 170,789.36 × 67,171.68
  4. Step 4: Simplify right side
    123,760.29x = 11,472,207,901.47
  5. Step 5: Solve for x
    x = 11,472,207,901.47/123,760.29
  6. Step 6: Final answer
    x = 92,697.00

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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.