Home / 220,835.17-331,258.20-80,593.75

Finding the Fourth Proportional to 220,835.17, 331,258.20 and 80,593.75

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Solution

The fourth proportional to 220,835.17, 331,258.20 and 80,593.75 is: 120,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,835.17 : 331,258.20 = 80,593.75 : x
  2. Step 2: Convert to fraction form
    220,835.17/331,258.20 = 80,593.75/x
  3. Step 3: Cross multiply
    220,835.17x = 331,258.20 × 80,593.75
  4. Step 4: Simplify right side
    220,835.17x = 26,697,340,556.25
  5. Step 5: Solve for x
    x = 26,697,340,556.25/220,835.17
  6. Step 6: Final answer
    x = 120,892.61

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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.