Home / 231,584.43-319,600.59-129,607.80

Finding the Fourth Proportional to 231,584.43, 319,600.59 and 129,607.80

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Solution

The fourth proportional to 231,584.43, 319,600.59 and 129,607.80 is: 178,866.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,584.43 : 319,600.59 = 129,607.80 : x
  2. Step 2: Convert to fraction form
    231,584.43/319,600.59 = 129,607.80/x
  3. Step 3: Cross multiply
    231,584.43x = 319,600.59 × 129,607.80
  4. Step 4: Simplify right side
    231,584.43x = 41,422,729,348.60
  5. Step 5: Solve for x
    x = 41,422,729,348.60/231,584.43
  6. Step 6: Final answer
    x = 178,866.64

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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.