Home / 90,751.20-136,033.92-88,474.56

Finding the Fourth Proportional to 90,751.20, 136,033.92 and 88,474.56

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Solution

The fourth proportional to 90,751.20, 136,033.92 and 88,474.56 is: 132,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,751.20 : 136,033.92 = 88,474.56 : x
  2. Step 2: Convert to fraction form
    90,751.20/136,033.92 = 88,474.56/x
  3. Step 3: Cross multiply
    90,751.20x = 136,033.92 × 88,474.56
  4. Step 4: Simplify right side
    90,751.20x = 12,035,541,217.08
  5. Step 5: Solve for x
    x = 12,035,541,217.08/90,751.20
  6. Step 6: Final answer
    x = 132,621.29

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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.