Home / 345,135.13-517,738.03-132,082.24

Finding the Fourth Proportional to 345,135.13, 517,738.03 and 132,082.24

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Solution

The fourth proportional to 345,135.13, 517,738.03 and 132,082.24 is: 198,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,135.13 : 517,738.03 = 132,082.24 : x
  2. Step 2: Convert to fraction form
    345,135.13/517,738.03 = 132,082.24/x
  3. Step 3: Cross multiply
    345,135.13x = 517,738.03 × 132,082.24
  4. Step 4: Simplify right side
    345,135.13x = 68,383,997,111.04
  5. Step 5: Solve for x
    x = 68,383,997,111.04/345,135.13
  6. Step 6: Final answer
    x = 198,136.88

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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.