Home / 220,836.57-331,185.12-71,043.48

Finding the Fourth Proportional to 220,836.57, 331,185.12 and 71,043.48

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Solution

The fourth proportional to 220,836.57, 331,185.12 and 71,043.48 is: 106,542.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,836.57 : 331,185.12 = 71,043.48 : x
  2. Step 2: Convert to fraction form
    220,836.57/331,185.12 = 71,043.48/x
  3. Step 3: Cross multiply
    220,836.57x = 331,185.12 × 71,043.48
  4. Step 4: Simplify right side
    220,836.57x = 23,528,543,449.02
  5. Step 5: Solve for x
    x = 23,528,543,449.02/220,836.57
  6. Step 6: Final answer
    x = 106,542.79

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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.