Home / 99,806.10-149,711.55-29,687.70

Finding the Fourth Proportional to 99,806.10, 149,711.55 and 29,687.70

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Solution

The fourth proportional to 99,806.10, 149,711.55 and 29,687.70 is: 44,532.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,806.10 : 149,711.55 = 29,687.70 : x
  2. Step 2: Convert to fraction form
    99,806.10/149,711.55 = 29,687.70/x
  3. Step 3: Cross multiply
    99,806.10x = 149,711.55 × 29,687.70
  4. Step 4: Simplify right side
    99,806.10x = 4,444,591,582.94
  5. Step 5: Solve for x
    x = 4,444,591,582.94/99,806.10
  6. Step 6: Final answer
    x = 44,532.26

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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.