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Finding the Fourth Proportional to 75,195.20, 112,821.60 and 74,014.40

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Solution

The fourth proportional to 75,195.20, 112,821.60 and 74,014.40 is: 111,049.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,195.20 : 112,821.60 = 74,014.40 : x
  2. Step 2: Convert to fraction form
    75,195.20/112,821.60 = 74,014.40/x
  3. Step 3: Cross multiply
    75,195.20x = 112,821.60 × 74,014.40
  4. Step 4: Simplify right side
    75,195.20x = 8,350,423,031.04
  5. Step 5: Solve for x
    x = 8,350,423,031.04/75,195.20
  6. Step 6: Final answer
    x = 111,049.95

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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.