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Finding the Fourth Proportional to 80,512.92, 120,227.22 and 65,751.12

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Solution

The fourth proportional to 80,512.92, 120,227.22 and 65,751.12 is: 98,183.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,512.92 : 120,227.22 = 65,751.12 : x
  2. Step 2: Convert to fraction form
    80,512.92/120,227.22 = 65,751.12/x
  3. Step 3: Cross multiply
    80,512.92x = 120,227.22 × 65,751.12
  4. Step 4: Simplify right side
    80,512.92x = 7,905,074,369.49
  5. Step 5: Solve for x
    x = 7,905,074,369.49/80,512.92
  6. Step 6: Final answer
    x = 98,183.92

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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.