Home / 231,542.60-319,545.95-129,578.27

Finding the Fourth Proportional to 231,542.60, 319,545.95 and 129,578.27

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Solution

The fourth proportional to 231,542.60, 319,545.95 and 129,578.27 is: 178,827.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,542.60 : 319,545.95 = 129,578.27 : x
  2. Step 2: Convert to fraction form
    231,542.60/319,545.95 = 129,578.27/x
  3. Step 3: Cross multiply
    231,542.60x = 319,545.95 × 129,578.27
  4. Step 4: Simplify right side
    231,542.60x = 41,406,209,140.89
  5. Step 5: Solve for x
    x = 41,406,209,140.89/231,542.60
  6. Step 6: Final answer
    x = 178,827.61

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1.5x scale

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.