Home / 204,787.45-307,319.57-71,668.90

Finding the Fourth Proportional to 204,787.45, 307,319.57 and 71,668.90

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Solution

The fourth proportional to 204,787.45, 307,319.57 and 71,668.90 is: 107,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,787.45 : 307,319.57 = 71,668.90 : x
  2. Step 2: Convert to fraction form
    204,787.45/307,319.57 = 71,668.90/x
  3. Step 3: Cross multiply
    204,787.45x = 307,319.57 × 71,668.90
  4. Step 4: Simplify right side
    204,787.45x = 22,025,253,635.43
  5. Step 5: Solve for x
    x = 22,025,253,635.43/204,787.45
  6. Step 6: Final answer
    x = 107,551.78

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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.