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Finding the Fourth Proportional to 138,637.73, 207,956.62 and 33,456.70

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Solution

The fourth proportional to 138,637.73, 207,956.62 and 33,456.70 is: 50,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,637.73 : 207,956.62 = 33,456.70 : x
  2. Step 2: Convert to fraction form
    138,637.73/207,956.62 = 33,456.70/x
  3. Step 3: Cross multiply
    138,637.73x = 207,956.62 × 33,456.70
  4. Step 4: Simplify right side
    138,637.73x = 6,957,542,248.35
  5. Step 5: Solve for x
    x = 6,957,542,248.35/138,637.73
  6. Step 6: Final answer
    x = 50,185.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.