Home / 217,500.18-326,237.28-67,719.39

Finding the Fourth Proportional to 217,500.18, 326,237.28 and 67,719.39

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Solution

The fourth proportional to 217,500.18, 326,237.28 and 67,719.39 is: 101,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,500.18 : 326,237.28 = 67,719.39 : x
  2. Step 2: Convert to fraction form
    217,500.18/326,237.28 = 67,719.39/x
  3. Step 3: Cross multiply
    217,500.18x = 326,237.28 × 67,719.39
  4. Step 4: Simplify right side
    217,500.18x = 22,092,589,596.86
  5. Step 5: Solve for x
    x = 22,092,589,596.86/217,500.18
  6. Step 6: Final answer
    x = 101,575.04

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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.