Home / 155,963.22-215,229.33-84,343.83

Finding the Fourth Proportional to 155,963.22, 215,229.33 and 84,343.83

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Solution

The fourth proportional to 155,963.22, 215,229.33 and 84,343.83 is: 116,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,963.22 : 215,229.33 = 84,343.83 : x
  2. Step 2: Convert to fraction form
    155,963.22/215,229.33 = 84,343.83/x
  3. Step 3: Cross multiply
    155,963.22x = 215,229.33 × 84,343.83
  4. Step 4: Simplify right side
    155,963.22x = 18,153,266,020.53
  5. Step 5: Solve for x
    x = 18,153,266,020.53/155,963.22
  6. Step 6: Final answer
    x = 116,394.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.