Home / 231,834.60-319,943.77-129,854.09

Finding the Fourth Proportional to 231,834.60, 319,943.77 and 129,854.09

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Solution

The fourth proportional to 231,834.60, 319,943.77 and 129,854.09 is: 179,205.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,834.60 : 319,943.77 = 129,854.09 : x
  2. Step 2: Convert to fraction form
    231,834.60/319,943.77 = 129,854.09/x
  3. Step 3: Cross multiply
    231,834.60x = 319,943.77 × 129,854.09
  4. Step 4: Simplify right side
    231,834.60x = 41,546,007,579.74
  5. Step 5: Solve for x
    x = 41,546,007,579.74/231,834.60
  6. Step 6: Final answer
    x = 179,205.38

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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.