Home / 231,867.54-319,997.49-129,891.36

Finding the Fourth Proportional to 231,867.54, 319,997.49 and 129,891.36

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Solution

The fourth proportional to 231,867.54, 319,997.49 and 129,891.36 is: 179,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,867.54 : 319,997.49 = 129,891.36 : x
  2. Step 2: Convert to fraction form
    231,867.54/319,997.49 = 129,891.36/x
  3. Step 3: Cross multiply
    231,867.54x = 319,997.49 × 129,891.36
  4. Step 4: Simplify right side
    231,867.54x = 41,564,909,172.69
  5. Step 5: Solve for x
    x = 41,564,909,172.69/231,867.54
  6. Step 6: Final answer
    x = 179,261.44

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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.