Home / 82,082.20-123,130.50-60,168.28

Finding the Fourth Proportional to 82,082.20, 123,130.50 and 60,168.28

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Solution

The fourth proportional to 82,082.20, 123,130.50 and 60,168.28 is: 90,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,082.20 : 123,130.50 = 60,168.28 : x
  2. Step 2: Convert to fraction form
    82,082.20/123,130.50 = 60,168.28/x
  3. Step 3: Cross multiply
    82,082.20x = 123,130.50 × 60,168.28
  4. Step 4: Simplify right side
    82,082.20x = 7,408,550,400.54
  5. Step 5: Solve for x
    x = 7,408,550,400.54/82,082.20
  6. Step 6: Final answer
    x = 90,257.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.