Home / 88,618.56-132,990.18-80,148.66

Finding the Fourth Proportional to 88,618.56, 132,990.18 and 80,148.66

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Solution

The fourth proportional to 88,618.56, 132,990.18 and 80,148.66 is: 120,279.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,618.56 : 132,990.18 = 80,148.66 : x
  2. Step 2: Convert to fraction form
    88,618.56/132,990.18 = 80,148.66/x
  3. Step 3: Cross multiply
    88,618.56x = 132,990.18 × 80,148.66
  4. Step 4: Simplify right side
    88,618.56x = 10,658,984,720.16
  5. Step 5: Solve for x
    x = 10,658,984,720.16/88,618.56
  6. Step 6: Final answer
    x = 120,279.37

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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.