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Finding the Fourth Proportional to 140,489.80, 193,894.50 and 80,082.28

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Solution

The fourth proportional to 140,489.80, 193,894.50 and 80,082.28 is: 110,524.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,489.80 : 193,894.50 = 80,082.28 : x
  2. Step 2: Convert to fraction form
    140,489.80/193,894.50 = 80,082.28/x
  3. Step 3: Cross multiply
    140,489.80x = 193,894.50 × 80,082.28
  4. Step 4: Simplify right side
    140,489.80x = 15,527,513,639.46
  5. Step 5: Solve for x
    x = 15,527,513,639.46/140,489.80
  6. Step 6: Final answer
    x = 110,524.14

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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.