Home / 231,651.33-319,678.97-129,677.00

Finding the Fourth Proportional to 231,651.33, 319,678.97 and 129,677.00

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Solution

The fourth proportional to 231,651.33, 319,678.97 and 129,677.00 is: 178,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,651.33 : 319,678.97 = 129,677.00 : x
  2. Step 2: Convert to fraction form
    231,651.33/319,678.97 = 129,677.00/x
  3. Step 3: Cross multiply
    231,651.33x = 319,678.97 × 129,677.00
  4. Step 4: Simplify right side
    231,651.33x = 41,455,007,545.91
  5. Step 5: Solve for x
    x = 41,455,007,545.91/231,651.33
  6. Step 6: Final answer
    x = 178,954.33

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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.