Home / 149,621.25-206,481.65-82,557.57

Finding the Fourth Proportional to 149,621.25, 206,481.65 and 82,557.57

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Solution

The fourth proportional to 149,621.25, 206,481.65 and 82,557.57 is: 113,931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,621.25 : 206,481.65 = 82,557.57 : x
  2. Step 2: Convert to fraction form
    149,621.25/206,481.65 = 82,557.57/x
  3. Step 3: Cross multiply
    149,621.25x = 206,481.65 × 82,557.57
  4. Step 4: Simplify right side
    149,621.25x = 17,046,622,860.80
  5. Step 5: Solve for x
    x = 17,046,622,860.80/149,621.25
  6. Step 6: Final answer
    x = 113,931.83

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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.