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Finding the Fourth Proportional to 156,689.60, 234,645.60 and 125,585.60

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Solution

The fourth proportional to 156,689.60, 234,645.60 and 125,585.60 is: 188,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,689.60 : 234,645.60 = 125,585.60 : x
  2. Step 2: Convert to fraction form
    156,689.60/234,645.60 = 125,585.60/x
  3. Step 3: Cross multiply
    156,689.60x = 234,645.60 × 125,585.60
  4. Step 4: Simplify right side
    156,689.60x = 29,468,108,463.36
  5. Step 5: Solve for x
    x = 29,468,108,463.36/156,689.60
  6. Step 6: Final answer
    x = 188,066.78

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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.