Home / 220,865.54-331,351.24-71,119.92

Finding the Fourth Proportional to 220,865.54, 331,351.24 and 71,119.92

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Solution

The fourth proportional to 220,865.54, 331,351.24 and 71,119.92 is: 106,696.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,865.54 : 331,351.24 = 71,119.92 : x
  2. Step 2: Convert to fraction form
    220,865.54/331,351.24 = 71,119.92/x
  3. Step 3: Cross multiply
    220,865.54x = 331,351.24 × 71,119.92
  4. Step 4: Simplify right side
    220,865.54x = 23,565,673,680.70
  5. Step 5: Solve for x
    x = 23,565,673,680.70/220,865.54
  6. Step 6: Final answer
    x = 106,696.92

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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.