Home / 231,159.64-319,022.94-140,508.76

Finding the Fourth Proportional to 231,159.64, 319,022.94 and 140,508.76

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Solution

The fourth proportional to 231,159.64, 319,022.94 and 140,508.76 is: 193,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,159.64 : 319,022.94 = 140,508.76 : x
  2. Step 2: Convert to fraction form
    231,159.64/319,022.94 = 140,508.76/x
  3. Step 3: Cross multiply
    231,159.64x = 319,022.94 × 140,508.76
  4. Step 4: Simplify right side
    231,159.64x = 44,825,517,710.95
  5. Step 5: Solve for x
    x = 44,825,517,710.95/231,159.64
  6. Step 6: Final answer
    x = 193,915.85

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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.