Home / 215,945.20-323,680.20-75,631.60

Finding the Fourth Proportional to 215,945.20, 323,680.20 and 75,631.60

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Solution

The fourth proportional to 215,945.20, 323,680.20 and 75,631.60 is: 113,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,945.20 : 323,680.20 = 75,631.60 : x
  2. Step 2: Convert to fraction form
    215,945.20/323,680.20 = 75,631.60/x
  3. Step 3: Cross multiply
    215,945.20x = 323,680.20 × 75,631.60
  4. Step 4: Simplify right side
    215,945.20x = 24,480,451,414.32
  5. Step 5: Solve for x
    x = 24,480,451,414.32/215,945.20
  6. Step 6: Final answer
    x = 113,364.18

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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.