Home / 106,942.80-160,414.20-71,691.60

Finding the Fourth Proportional to 106,942.80, 160,414.20 and 71,691.60

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Solution

The fourth proportional to 106,942.80, 160,414.20 and 71,691.60 is: 107,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,942.80 : 160,414.20 = 71,691.60 : x
  2. Step 2: Convert to fraction form
    106,942.80/160,414.20 = 71,691.60/x
  3. Step 3: Cross multiply
    106,942.80x = 160,414.20 × 71,691.60
  4. Step 4: Simplify right side
    106,942.80x = 11,500,350,660.72
  5. Step 5: Solve for x
    x = 11,500,350,660.72/106,942.80
  6. Step 6: Final answer
    x = 107,537.40

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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.