Home / 140,086.40-193,311.68-79,648.70

Finding the Fourth Proportional to 140,086.40, 193,311.68 and 79,648.70

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Solution

The fourth proportional to 140,086.40, 193,311.68 and 79,648.70 is: 109,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,086.40 : 193,311.68 = 79,648.70 : x
  2. Step 2: Convert to fraction form
    140,086.40/193,311.68 = 79,648.70/x
  3. Step 3: Cross multiply
    140,086.40x = 193,311.68 × 79,648.70
  4. Step 4: Simplify right side
    140,086.40x = 15,397,024,006.82
  5. Step 5: Solve for x
    x = 15,397,024,006.82/140,086.40
  6. Step 6: Final answer
    x = 109,910.91

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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.