Home / 136,142.26-204,186.47-129,391.11

Finding the Fourth Proportional to 136,142.26, 204,186.47 and 129,391.11

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Solution

The fourth proportional to 136,142.26, 204,186.47 and 129,391.11 is: 194,061.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,142.26 : 204,186.47 = 129,391.11 : x
  2. Step 2: Convert to fraction form
    136,142.26/204,186.47 = 129,391.11/x
  3. Step 3: Cross multiply
    136,142.26x = 204,186.47 × 129,391.11
  4. Step 4: Simplify right side
    136,142.26x = 26,419,914,000.28
  5. Step 5: Solve for x
    x = 26,419,914,000.28/136,142.26
  6. Step 6: Final answer
    x = 194,061.08

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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.