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Finding the Fourth Proportional to 181,861.60, 273,375.60 and 129,632.80

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Solution

The fourth proportional to 181,861.60, 273,375.60 and 129,632.80 is: 194,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,861.60 : 273,375.60 = 129,632.80 : x
  2. Step 2: Convert to fraction form
    181,861.60/273,375.60 = 129,632.80/x
  3. Step 3: Cross multiply
    181,861.60x = 273,375.60 × 129,632.80
  4. Step 4: Simplify right side
    181,861.60x = 35,438,444,479.68
  5. Step 5: Solve for x
    x = 35,438,444,479.68/181,861.60
  6. Step 6: Final answer
    x = 194,864.91

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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.