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Finding the Fourth Proportional to 132,522.40, 198,793.20 and 79,818.40

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Solution

The fourth proportional to 132,522.40, 198,793.20 and 79,818.40 is: 119,733.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,522.40 : 198,793.20 = 79,818.40 : x
  2. Step 2: Convert to fraction form
    132,522.40/198,793.20 = 79,818.40/x
  3. Step 3: Cross multiply
    132,522.40x = 198,793.20 × 79,818.40
  4. Step 4: Simplify right side
    132,522.40x = 15,867,355,154.88
  5. Step 5: Solve for x
    x = 15,867,355,154.88/132,522.40
  6. Step 6: Final answer
    x = 119,733.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.