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Finding the Fourth Proportional to 159,487.73, 239,255.80 and 54,282.10

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Solution

The fourth proportional to 159,487.73, 239,255.80 and 54,282.10 is: 81,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,487.73 : 239,255.80 = 54,282.10 : x
  2. Step 2: Convert to fraction form
    159,487.73/239,255.80 = 54,282.10/x
  3. Step 3: Cross multiply
    159,487.73x = 239,255.80 × 54,282.10
  4. Step 4: Simplify right side
    159,487.73x = 12,987,307,261.18
  5. Step 5: Solve for x
    x = 12,987,307,261.18/159,487.73
  6. Step 6: Final answer
    x = 81,431.39

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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.