Home / 149,610.24-206,452.80-82,542.72

Finding the Fourth Proportional to 149,610.24, 206,452.80 and 82,542.72

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Solution

The fourth proportional to 149,610.24, 206,452.80 and 82,542.72 is: 113,903.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,610.24 : 206,452.80 = 82,542.72 : x
  2. Step 2: Convert to fraction form
    149,610.24/206,452.80 = 82,542.72/x
  3. Step 3: Cross multiply
    149,610.24x = 206,452.80 × 82,542.72
  4. Step 4: Simplify right side
    149,610.24x = 17,041,175,663.62
  5. Step 5: Solve for x
    x = 17,041,175,663.62/149,610.24
  6. Step 6: Final answer
    x = 113,903.81

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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.