Home / 217,872.20-326,565.30-84,708.20

Finding the Fourth Proportional to 217,872.20, 326,565.30 and 84,708.20

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Solution

The fourth proportional to 217,872.20, 326,565.30 and 84,708.20 is: 126,967.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,872.20 : 326,565.30 = 84,708.20 : x
  2. Step 2: Convert to fraction form
    217,872.20/326,565.30 = 84,708.20/x
  3. Step 3: Cross multiply
    217,872.20x = 326,565.30 × 84,708.20
  4. Step 4: Simplify right side
    217,872.20x = 27,662,758,745.46
  5. Step 5: Solve for x
    x = 27,662,758,745.46/217,872.20
  6. Step 6: Final answer
    x = 126,967.82

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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.