Home / 149,379.92-206,146.44-82,310.48

Finding the Fourth Proportional to 149,379.92, 206,146.44 and 82,310.48

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Solution

The fourth proportional to 149,379.92, 206,146.44 and 82,310.48 is: 113,589.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,379.92 : 206,146.44 = 82,310.48 : x
  2. Step 2: Convert to fraction form
    149,379.92/206,146.44 = 82,310.48/x
  3. Step 3: Cross multiply
    149,379.92x = 206,146.44 × 82,310.48
  4. Step 4: Simplify right side
    149,379.92x = 16,968,012,426.69
  5. Step 5: Solve for x
    x = 16,968,012,426.69/149,379.92
  6. Step 6: Final answer
    x = 113,589.65

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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.