Home / 231,629.59-319,654.25-129,652.52

Finding the Fourth Proportional to 231,629.59, 319,654.25 and 129,652.52

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Solution

The fourth proportional to 231,629.59, 319,654.25 and 129,652.52 is: 178,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,629.59 : 319,654.25 = 129,652.52 : x
  2. Step 2: Convert to fraction form
    231,629.59/319,654.25 = 129,652.52/x
  3. Step 3: Cross multiply
    231,629.59x = 319,654.25 × 129,652.52
  4. Step 4: Simplify right side
    231,629.59x = 41,443,977,280.87
  5. Step 5: Solve for x
    x = 41,443,977,280.87/231,629.59
  6. Step 6: Final answer
    x = 178,923.50

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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.