Home / 231,154.64-319,016.04-140,503.76

Finding the Fourth Proportional to 231,154.64, 319,016.04 and 140,503.76

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Solution

The fourth proportional to 231,154.64, 319,016.04 and 140,503.76 is: 193,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,154.64 : 319,016.04 = 140,503.76 : x
  2. Step 2: Convert to fraction form
    231,154.64/319,016.04 = 140,503.76/x
  3. Step 3: Cross multiply
    231,154.64x = 319,016.04 × 140,503.76
  4. Step 4: Simplify right side
    231,154.64x = 44,822,953,120.31
  5. Step 5: Solve for x
    x = 44,822,953,120.31/231,154.64
  6. Step 6: Final answer
    x = 193,908.95

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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.