Home / 205,932.38-284,102.64-129,426.80

Finding the Fourth Proportional to 205,932.38, 284,102.64 and 129,426.80

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Solution

The fourth proportional to 205,932.38, 284,102.64 and 129,426.80 is: 178,556.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,932.38 : 284,102.64 = 129,426.80 : x
  2. Step 2: Convert to fraction form
    205,932.38/284,102.64 = 129,426.80/x
  3. Step 3: Cross multiply
    205,932.38x = 284,102.64 × 129,426.80
  4. Step 4: Simplify right side
    205,932.38x = 36,770,494,146.24
  5. Step 5: Solve for x
    x = 36,770,494,146.24/205,932.38
  6. Step 6: Final answer
    x = 178,556.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.