Home / 88,367.20-132,356.40-78,517.60

Finding the Fourth Proportional to 88,367.20, 132,356.40 and 78,517.60

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Solution

The fourth proportional to 88,367.20, 132,356.40 and 78,517.60 is: 117,603.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,367.20 : 132,356.40 = 78,517.60 : x
  2. Step 2: Convert to fraction form
    88,367.20/132,356.40 = 78,517.60/x
  3. Step 3: Cross multiply
    88,367.20x = 132,356.40 × 78,517.60
  4. Step 4: Simplify right side
    88,367.20x = 10,392,306,872.64
  5. Step 5: Solve for x
    x = 10,392,306,872.64/88,367.20
  6. Step 6: Final answer
    x = 117,603.67

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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.