Home / 231,921.20-347,622.60-132,129.20

Finding the Fourth Proportional to 231,921.20, 347,622.60 and 132,129.20

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Solution

The fourth proportional to 231,921.20, 347,622.60 and 132,129.20 is: 198,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,921.20 : 347,622.60 = 132,129.20 : x
  2. Step 2: Convert to fraction form
    231,921.20/347,622.60 = 132,129.20/x
  3. Step 3: Cross multiply
    231,921.20x = 347,622.60 × 132,129.20
  4. Step 4: Simplify right side
    231,921.20x = 45,931,096,039.92
  5. Step 5: Solve for x
    x = 45,931,096,039.92/231,921.20
  6. Step 6: Final answer
    x = 198,046.13

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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.