Home / 149,819.97-206,749.49-81,836.13

Finding the Fourth Proportional to 149,819.97, 206,749.49 and 81,836.13

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Solution

The fourth proportional to 149,819.97, 206,749.49 and 81,836.13 is: 112,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,819.97 : 206,749.49 = 81,836.13 : x
  2. Step 2: Convert to fraction form
    149,819.97/206,749.49 = 81,836.13/x
  3. Step 3: Cross multiply
    149,819.97x = 206,749.49 × 81,836.13
  4. Step 4: Simplify right side
    149,819.97x = 16,919,577,731.89
  5. Step 5: Solve for x
    x = 16,919,577,731.89/149,819.97
  6. Step 6: Final answer
    x = 112,932.73

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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.