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Finding the Fourth Proportional to 156,937.60, 235,017.60 and 100,691.20

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Solution

The fourth proportional to 156,937.60, 235,017.60 and 100,691.20 is: 150,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937.60 : 235,017.60 = 100,691.20 : x
  2. Step 2: Convert to fraction form
    156,937.60/235,017.60 = 100,691.20/x
  3. Step 3: Cross multiply
    156,937.60x = 235,017.60 × 100,691.20
  4. Step 4: Simplify right side
    156,937.60x = 23,664,204,165.12
  5. Step 5: Solve for x
    x = 23,664,204,165.12/156,937.60
  6. Step 6: Final answer
    x = 150,787.35

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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.