Home / 217,723.20-326,523.12-84,575.04

Finding the Fourth Proportional to 217,723.20, 326,523.12 and 84,575.04

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Solution

The fourth proportional to 217,723.20, 326,523.12 and 84,575.04 is: 126,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,723.20 : 326,523.12 = 84,575.04 : x
  2. Step 2: Convert to fraction form
    217,723.20/326,523.12 = 84,575.04/x
  3. Step 3: Cross multiply
    217,723.20x = 326,523.12 × 84,575.04
  4. Step 4: Simplify right side
    217,723.20x = 27,615,705,934.92
  5. Step 5: Solve for x
    x = 27,615,705,934.92/217,723.20
  6. Step 6: Final answer
    x = 126,838.60

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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.