Home / 140,082.40-193,306.17-79,644.70

Finding the Fourth Proportional to 140,082.40, 193,306.17 and 79,644.70

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Solution

The fourth proportional to 140,082.40, 193,306.17 and 79,644.70 is: 109,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,082.40 : 193,306.17 = 79,644.70 : x
  2. Step 2: Convert to fraction form
    140,082.40/193,306.17 = 79,644.70/x
  3. Step 3: Cross multiply
    140,082.40x = 193,306.17 × 79,644.70
  4. Step 4: Simplify right side
    140,082.40x = 15,395,811,917.80
  5. Step 5: Solve for x
    x = 15,395,811,917.80/140,082.40
  6. Step 6: Final answer
    x = 109,905.40

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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.