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Finding the Fourth Proportional to 138,604.32, 207,893.52 and 38,773.44

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Solution

The fourth proportional to 138,604.32, 207,893.52 and 38,773.44 is: 58,156.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,604.32 : 207,893.52 = 38,773.44 : x
  2. Step 2: Convert to fraction form
    138,604.32/207,893.52 = 38,773.44/x
  3. Step 3: Cross multiply
    138,604.32x = 207,893.52 × 38,773.44
  4. Step 4: Simplify right side
    138,604.32x = 8,060,746,924.11
  5. Step 5: Solve for x
    x = 8,060,746,924.11/138,604.32
  6. Step 6: Final answer
    x = 58,156.53

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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.