Home / 149,821.88-206,754.19-82,758.20

Finding the Fourth Proportional to 149,821.88, 206,754.19 and 82,758.20

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Solution

The fourth proportional to 149,821.88, 206,754.19 and 82,758.20 is: 114,206.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,821.88 : 206,754.19 = 82,758.20 : x
  2. Step 2: Convert to fraction form
    149,821.88/206,754.19 = 82,758.20/x
  3. Step 3: Cross multiply
    149,821.88x = 206,754.19 × 82,758.20
  4. Step 4: Simplify right side
    149,821.88x = 17,110,603,366.19
  5. Step 5: Solve for x
    x = 17,110,603,366.19/149,821.88
  6. Step 6: Final answer
    x = 114,206.31

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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.