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Finding the Fourth Proportional to 104,082.50, 155,960.23 and 80,447.91

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Solution

The fourth proportional to 104,082.50, 155,960.23 and 80,447.91 is: 120,545.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,082.50 : 155,960.23 = 80,447.91 : x
  2. Step 2: Convert to fraction form
    104,082.50/155,960.23 = 80,447.91/x
  3. Step 3: Cross multiply
    104,082.50x = 155,960.23 × 80,447.91
  4. Step 4: Simplify right side
    104,082.50x = 12,546,674,546.62
  5. Step 5: Solve for x
    x = 12,546,674,546.62/104,082.50
  6. Step 6: Final answer
    x = 120,545.48

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