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Finding the Fourth Proportional to 129,096.40, 193,713.40 and 50,213.20

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Solution

The fourth proportional to 129,096.40, 193,713.40 and 50,213.20 is: 75,346.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,096.40 : 193,713.40 = 50,213.20 : x
  2. Step 2: Convert to fraction form
    129,096.40/193,713.40 = 50,213.20/x
  3. Step 3: Cross multiply
    129,096.40x = 193,713.40 × 50,213.20
  4. Step 4: Simplify right side
    129,096.40x = 9,726,969,696.88
  5. Step 5: Solve for x
    x = 9,726,969,696.88/129,096.40
  6. Step 6: Final answer
    x = 75,346.56

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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.