Home / 128,581.38-192,753.94-44,321.54

Finding the Fourth Proportional to 128,581.38, 192,753.94 and 44,321.54

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Solution

The fourth proportional to 128,581.38, 192,753.94 and 44,321.54 is: 66,441.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,581.38 : 192,753.94 = 44,321.54 : x
  2. Step 2: Convert to fraction form
    128,581.38/192,753.94 = 44,321.54/x
  3. Step 3: Cross multiply
    128,581.38x = 192,753.94 × 44,321.54
  4. Step 4: Simplify right side
    128,581.38x = 8,543,151,461.87
  5. Step 5: Solve for x
    x = 8,543,151,461.87/128,581.38
  6. Step 6: Final answer
    x = 66,441.59

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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.