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Finding the Fourth Proportional to 169,235.60, 253,787.78 and 90,306.77

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Solution

The fourth proportional to 169,235.60, 253,787.78 and 90,306.77 is: 135,425.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,235.60 : 253,787.78 = 90,306.77 : x
  2. Step 2: Convert to fraction form
    169,235.60/253,787.78 = 90,306.77/x
  3. Step 3: Cross multiply
    169,235.60x = 253,787.78 × 90,306.77
  4. Step 4: Simplify right side
    169,235.60x = 22,918,753,634.10
  5. Step 5: Solve for x
    x = 22,918,753,634.10/169,235.60
  6. Step 6: Final answer
    x = 135,425.14

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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.