Home / 231,850.29-319,973.67-129,874.11

Finding the Fourth Proportional to 231,850.29, 319,973.67 and 129,874.11

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Solution

The fourth proportional to 231,850.29, 319,973.67 and 129,874.11 is: 179,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,850.29 : 319,973.67 = 129,874.11 : x
  2. Step 2: Convert to fraction form
    231,850.29/319,973.67 = 129,874.11/x
  3. Step 3: Cross multiply
    231,850.29x = 319,973.67 × 129,874.11
  4. Step 4: Simplify right side
    231,850.29x = 41,556,295,614.68
  5. Step 5: Solve for x
    x = 41,556,295,614.68/231,850.29
  6. Step 6: Final answer
    x = 179,237.63

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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.