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Finding the Fourth Proportional to 123,924.96, 171,018 and 67,337.28

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Solution

The fourth proportional to 123,924.96, 171,018 and 67,337.28 is: 92,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,924.96 : 171,018 = 67,337.28 : x
  2. Step 2: Convert to fraction form
    123,924.96/171,018 = 67,337.28/x
  3. Step 3: Cross multiply
    123,924.96x = 171,018 × 67,337.28
  4. Step 4: Simplify right side
    123,924.96x = 11,515,886,951.04
  5. Step 5: Solve for x
    x = 11,515,886,951.04/123,924.96
  6. Step 6: Final answer
    x = 92,926.29

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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.