Home / 215,432.92-323,003.58-75,115

Finding the Fourth Proportional to 215,432.92, 323,003.58 and 75,115

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Solution

The fourth proportional to 215,432.92, 323,003.58 and 75,115 is: 112,621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,432.92 : 323,003.58 = 75,115 : x
  2. Step 2: Convert to fraction form
    215,432.92/323,003.58 = 75,115/x
  3. Step 3: Cross multiply
    215,432.92x = 323,003.58 × 75,115
  4. Step 4: Simplify right side
    215,432.92x = 24,262,413,911.70
  5. Step 5: Solve for x
    x = 24,262,413,911.70/215,432.92
  6. Step 6: Final answer
    x = 112,621.66

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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.