Home / 220,160.18-330,136.19-85,287.43

Finding the Fourth Proportional to 220,160.18, 330,136.19 and 85,287.43

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Solution

The fourth proportional to 220,160.18, 330,136.19 and 85,287.43 is: 127,890.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,160.18 : 330,136.19 = 85,287.43 : x
  2. Step 2: Convert to fraction form
    220,160.18/330,136.19 = 85,287.43/x
  3. Step 3: Cross multiply
    220,160.18x = 330,136.19 × 85,287.43
  4. Step 4: Simplify right side
    220,160.18x = 28,156,465,644.14
  5. Step 5: Solve for x
    x = 28,156,465,644.14/220,160.18
  6. Step 6: Final answer
    x = 127,890.82

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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.