Home / 220,860.80-331,344.10-71,115.14

Finding the Fourth Proportional to 220,860.80, 331,344.10 and 71,115.14

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Solution

The fourth proportional to 220,860.80, 331,344.10 and 71,115.14 is: 106,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,860.80 : 331,344.10 = 71,115.14 : x
  2. Step 2: Convert to fraction form
    220,860.80/331,344.10 = 71,115.14/x
  3. Step 3: Cross multiply
    220,860.80x = 331,344.10 × 71,115.14
  4. Step 4: Simplify right side
    220,860.80x = 23,563,582,059.67
  5. Step 5: Solve for x
    x = 23,563,582,059.67/220,860.80
  6. Step 6: Final answer
    x = 106,689.74

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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.