Home / 131,508.14-197,286.96-42,787.02

Finding the Fourth Proportional to 131,508.14, 197,286.96 and 42,787.02

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Solution

The fourth proportional to 131,508.14, 197,286.96 and 42,787.02 is: 64,188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,508.14 : 197,286.96 = 42,787.02 : x
  2. Step 2: Convert to fraction form
    131,508.14/197,286.96 = 42,787.02/x
  3. Step 3: Cross multiply
    131,508.14x = 197,286.96 × 42,787.02
  4. Step 4: Simplify right side
    131,508.14x = 8,441,321,103.26
  5. Step 5: Solve for x
    x = 8,441,321,103.26/131,508.14
  6. Step 6: Final answer
    x = 64,188.59

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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.