Home / 234,933.20-351,679.80-129,429.20

Finding the Fourth Proportional to 234,933.20, 351,679.80 and 129,429.20

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Solution

The fourth proportional to 234,933.20, 351,679.80 and 129,429.20 is: 193,747.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,933.20 : 351,679.80 = 129,429.20 : x
  2. Step 2: Convert to fraction form
    234,933.20/351,679.80 = 129,429.20/x
  3. Step 3: Cross multiply
    234,933.20x = 351,679.80 × 129,429.20
  4. Step 4: Simplify right side
    234,933.20x = 45,517,635,170.16
  5. Step 5: Solve for x
    x = 45,517,635,170.16/234,933.20
  6. Step 6: Final answer
    x = 193,747.14

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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.