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Finding the Fourth Proportional to 80,151.81, 120,209.90 and 23,991.68

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Solution

The fourth proportional to 80,151.81, 120,209.90 and 23,991.68 is: 35,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,151.81 : 120,209.90 = 23,991.68 : x
  2. Step 2: Convert to fraction form
    80,151.81/120,209.90 = 23,991.68/x
  3. Step 3: Cross multiply
    80,151.81x = 120,209.90 × 23,991.68
  4. Step 4: Simplify right side
    80,151.81x = 2,884,036,732.62
  5. Step 5: Solve for x
    x = 2,884,036,732.62/80,151.81
  6. Step 6: Final answer
    x = 35,982.18

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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.