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Finding the Fourth Proportional to 140,059, 193,248.18 and 79,624.90

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Solution

The fourth proportional to 140,059, 193,248.18 and 79,624.90 is: 109,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,059 : 193,248.18 = 79,624.90 : x
  2. Step 2: Convert to fraction form
    140,059/193,248.18 = 79,624.90/x
  3. Step 3: Cross multiply
    140,059x = 193,248.18 × 79,624.90
  4. Step 4: Simplify right side
    140,059x = 15,387,367,007.68
  5. Step 5: Solve for x
    x = 15,387,367,007.68/140,059
  6. Step 6: Final answer
    x = 109,863.46

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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.