Home / 80,923.46-120,785.97-75,937.10

Finding the Fourth Proportional to 80,923.46, 120,785.97 and 75,937.10

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Solution

The fourth proportional to 80,923.46, 120,785.97 and 75,937.10 is: 113,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,923.46 : 120,785.97 = 75,937.10 : x
  2. Step 2: Convert to fraction form
    80,923.46/120,785.97 = 75,937.10/x
  3. Step 3: Cross multiply
    80,923.46x = 120,785.97 × 75,937.10
  4. Step 4: Simplify right side
    80,923.46x = 9,172,135,902.80
  5. Step 5: Solve for x
    x = 9,172,135,902.80/80,923.46
  6. Step 6: Final answer
    x = 113,343.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.