Home / 324,787.62-487,150.03-100,087.72

Finding the Fourth Proportional to 324,787.62, 487,150.03 and 100,087.72

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Solution

The fourth proportional to 324,787.62, 487,150.03 and 100,087.72 is: 150,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,787.62 : 487,150.03 = 100,087.72 : x
  2. Step 2: Convert to fraction form
    324,787.62/487,150.03 = 100,087.72/x
  3. Step 3: Cross multiply
    324,787.62x = 487,150.03 × 100,087.72
  4. Step 4: Simplify right side
    324,787.62x = 48,757,734,707.87
  5. Step 5: Solve for x
    x = 48,757,734,707.87/324,787.62
  6. Step 6: Final answer
    x = 150,121.90

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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.