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Finding the Fourth Proportional to 188,654.39, 260,380.02 and 108,135.83

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Solution

The fourth proportional to 188,654.39, 260,380.02 and 108,135.83 is: 149,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,654.39 : 260,380.02 = 108,135.83 : x
  2. Step 2: Convert to fraction form
    188,654.39/260,380.02 = 108,135.83/x
  3. Step 3: Cross multiply
    188,654.39x = 260,380.02 × 108,135.83
  4. Step 4: Simplify right side
    188,654.39x = 28,156,408,276.22
  5. Step 5: Solve for x
    x = 28,156,408,276.22/188,654.39
  6. Step 6: Final answer
    x = 149,248.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.