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Finding the Fourth Proportional to 132,408.20, 198,539.40 and 53,433.20

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Solution

The fourth proportional to 132,408.20, 198,539.40 and 53,433.20 is: 80,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,408.20 : 198,539.40 = 53,433.20 : x
  2. Step 2: Convert to fraction form
    132,408.20/198,539.40 = 53,433.20/x
  3. Step 3: Cross multiply
    132,408.20x = 198,539.40 × 53,433.20
  4. Step 4: Simplify right side
    132,408.20x = 10,608,595,468.08
  5. Step 5: Solve for x
    x = 10,608,595,468.08/132,408.20
  6. Step 6: Final answer
    x = 80,120.38

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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.