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Finding the Fourth Proportional to 138,637.54, 207,956.31 and 33,456.52

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Solution

The fourth proportional to 138,637.54, 207,956.31 and 33,456.52 is: 50,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,637.54 : 207,956.31 = 33,456.52 : x
  2. Step 2: Convert to fraction form
    138,637.54/207,956.31 = 33,456.52/x
  3. Step 3: Cross multiply
    138,637.54x = 207,956.31 × 33,456.52
  4. Step 4: Simplify right side
    138,637.54x = 6,957,494,444.64
  5. Step 5: Solve for x
    x = 6,957,494,444.64/138,637.54
  6. Step 6: Final answer
    x = 50,184.78

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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.