Home / 149,524.20-206,342.10-81,542.25

Finding the Fourth Proportional to 149,524.20, 206,342.10 and 81,542.25

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Solution

The fourth proportional to 149,524.20, 206,342.10 and 81,542.25 is: 112,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,524.20 : 206,342.10 = 81,542.25 : x
  2. Step 2: Convert to fraction form
    149,524.20/206,342.10 = 81,542.25/x
  3. Step 3: Cross multiply
    149,524.20x = 206,342.10 × 81,542.25
  4. Step 4: Simplify right side
    149,524.20x = 16,825,599,103.73
  5. Step 5: Solve for x
    x = 16,825,599,103.73/149,524.20
  6. Step 6: Final answer
    x = 112,527.60

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1.5x scale

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.