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Finding the Fourth Proportional to 158,634.78, 237,484.68 and 138,951.78

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Solution

The fourth proportional to 158,634.78, 237,484.68 and 138,951.78 is: 208,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,634.78 : 237,484.68 = 138,951.78 : x
  2. Step 2: Convert to fraction form
    158,634.78/237,484.68 = 138,951.78/x
  3. Step 3: Cross multiply
    158,634.78x = 237,484.68 × 138,951.78
  4. Step 4: Simplify right side
    158,634.78x = 32,998,919,008.73
  5. Step 5: Solve for x
    x = 32,998,919,008.73/158,634.78
  6. Step 6: Final answer
    x = 208,018.18

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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.