Home / 88,375.20-132,563.04-72,774.39

Finding the Fourth Proportional to 88,375.20, 132,563.04 and 72,774.39

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Solution

The fourth proportional to 88,375.20, 132,563.04 and 72,774.39 is: 109,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,375.20 : 132,563.04 = 72,774.39 : x
  2. Step 2: Convert to fraction form
    88,375.20/132,563.04 = 72,774.39/x
  3. Step 3: Cross multiply
    88,375.20x = 132,563.04 × 72,774.39
  4. Step 4: Simplify right side
    88,375.20x = 9,647,194,372.55
  5. Step 5: Solve for x
    x = 9,647,194,372.55/88,375.20
  6. Step 6: Final answer
    x = 109,161.78

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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.