Home / 231,836.60-319,946.52-129,856.10

Finding the Fourth Proportional to 231,836.60, 319,946.52 and 129,856.10

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Solution

The fourth proportional to 231,836.60, 319,946.52 and 129,856.10 is: 179,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,836.60 : 319,946.52 = 129,856.10 : x
  2. Step 2: Convert to fraction form
    231,836.60/319,946.52 = 129,856.10/x
  3. Step 3: Cross multiply
    231,836.60x = 319,946.52 × 129,856.10
  4. Step 4: Simplify right side
    231,836.60x = 41,547,007,295.77
  5. Step 5: Solve for x
    x = 41,547,007,295.77/231,836.60
  6. Step 6: Final answer
    x = 179,208.15

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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.