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Finding the Fourth Proportional to 159,114.78, 238,680.68 and 40,787.15

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Solution

The fourth proportional to 159,114.78, 238,680.68 and 40,787.15 is: 61,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,114.78 : 238,680.68 = 40,787.15 : x
  2. Step 2: Convert to fraction form
    159,114.78/238,680.68 = 40,787.15/x
  3. Step 3: Cross multiply
    159,114.78x = 238,680.68 × 40,787.15
  4. Step 4: Simplify right side
    159,114.78x = 9,735,103,299.92
  5. Step 5: Solve for x
    x = 9,735,103,299.92/159,114.78
  6. Step 6: Final answer
    x = 61,182.90

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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.