Home / 149,860.80-206,797.92-82,791.36

Finding the Fourth Proportional to 149,860.80, 206,797.92 and 82,791.36

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Solution

The fourth proportional to 149,860.80, 206,797.92 and 82,791.36 is: 114,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,860.80 : 206,797.92 = 82,791.36 : x
  2. Step 2: Convert to fraction form
    149,860.80/206,797.92 = 82,791.36/x
  3. Step 3: Cross multiply
    149,860.80x = 206,797.92 × 82,791.36
  4. Step 4: Simplify right side
    149,860.80x = 17,121,081,041.97
  5. Step 5: Solve for x
    x = 17,121,081,041.97/149,860.80
  6. Step 6: Final answer
    x = 114,246.56

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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.