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Finding the Fourth Proportional to 123,757.77, 170,785.82 and 67,169.13

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Solution

The fourth proportional to 123,757.77, 170,785.82 and 67,169.13 is: 92,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,757.77 : 170,785.82 = 67,169.13 : x
  2. Step 2: Convert to fraction form
    123,757.77/170,785.82 = 67,169.13/x
  3. Step 3: Cross multiply
    123,757.77x = 170,785.82 × 67,169.13
  4. Step 4: Simplify right side
    123,757.77x = 11,471,534,609.89
  5. Step 5: Solve for x
    x = 11,471,534,609.89/123,757.77
  6. Step 6: Final answer
    x = 92,693.45

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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.