Home / 204,728.38-282,586-129,327.10

Finding the Fourth Proportional to 204,728.38, 282,586 and 129,327.10

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Solution

The fourth proportional to 204,728.38, 282,586 and 129,327.10 is: 178,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,728.38 : 282,586 = 129,327.10 : x
  2. Step 2: Convert to fraction form
    204,728.38/282,586 = 129,327.10/x
  3. Step 3: Cross multiply
    204,728.38x = 282,586 × 129,327.10
  4. Step 4: Simplify right side
    204,728.38x = 36,546,027,880.60
  5. Step 5: Solve for x
    x = 36,546,027,880.60/204,728.38
  6. Step 6: Final answer
    x = 178,509.83

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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.