Home / 149,212.43-206,098.11-108,311.31

Finding the Fourth Proportional to 149,212.43, 206,098.11 and 108,311.31

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Solution

The fourth proportional to 149,212.43, 206,098.11 and 108,311.31 is: 149,603.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,212.43 : 206,098.11 = 108,311.31 : x
  2. Step 2: Convert to fraction form
    149,212.43/206,098.11 = 108,311.31/x
  3. Step 3: Cross multiply
    149,212.43x = 206,098.11 × 108,311.31
  4. Step 4: Simplify right side
    149,212.43x = 22,322,756,282.62
  5. Step 5: Solve for x
    x = 22,322,756,282.62/149,212.43
  6. Step 6: Final answer
    x = 149,603.87

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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.