Home / 149,730.88-206,627.19-81,747.25

Finding the Fourth Proportional to 149,730.88, 206,627.19 and 81,747.25

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Solution

The fourth proportional to 149,730.88, 206,627.19 and 81,747.25 is: 112,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,730.88 : 206,627.19 = 81,747.25 : x
  2. Step 2: Convert to fraction form
    149,730.88/206,627.19 = 81,747.25/x
  3. Step 3: Cross multiply
    149,730.88x = 206,627.19 × 81,747.25
  4. Step 4: Simplify right side
    149,730.88x = 16,891,204,557.73
  5. Step 5: Solve for x
    x = 16,891,204,557.73/149,730.88
  6. Step 6: Final answer
    x = 112,810.43

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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.