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Finding the Fourth Proportional to 80,234.65, 120,237.16 and 45,100.50

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Solution

The fourth proportional to 80,234.65, 120,237.16 and 45,100.50 is: 67,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,234.65 : 120,237.16 = 45,100.50 : x
  2. Step 2: Convert to fraction form
    80,234.65/120,237.16 = 45,100.50/x
  3. Step 3: Cross multiply
    80,234.65x = 120,237.16 × 45,100.50
  4. Step 4: Simplify right side
    80,234.65x = 5,422,755,555.50
  5. Step 5: Solve for x
    x = 5,422,755,555.50/80,234.65
  6. Step 6: Final answer
    x = 67,586.20

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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.