Home / 149,310.65-206,046.93-81,327.41

Finding the Fourth Proportional to 149,310.65, 206,046.93 and 81,327.41

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Solution

The fourth proportional to 149,310.65, 206,046.93 and 81,327.41 is: 112,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,310.65 : 206,046.93 = 81,327.41 : x
  2. Step 2: Convert to fraction form
    149,310.65/206,046.93 = 81,327.41/x
  3. Step 3: Cross multiply
    149,310.65x = 206,046.93 × 81,327.41
  4. Step 4: Simplify right side
    149,310.65x = 16,757,262,125.12
  5. Step 5: Solve for x
    x = 16,757,262,125.12/149,310.65
  6. Step 6: Final answer
    x = 112,230.86

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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.