Home / 149,873.25-206,818.92-81,892.56

Finding the Fourth Proportional to 149,873.25, 206,818.92 and 81,892.56

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Solution

The fourth proportional to 149,873.25, 206,818.92 and 81,892.56 is: 113,008.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,873.25 : 206,818.92 = 81,892.56 : x
  2. Step 2: Convert to fraction form
    149,873.25/206,818.92 = 81,892.56/x
  3. Step 3: Cross multiply
    149,873.25x = 206,818.92 × 81,892.56
  4. Step 4: Simplify right side
    149,873.25x = 16,936,930,815.24
  5. Step 5: Solve for x
    x = 16,936,930,815.24/149,873.25
  6. Step 6: Final answer
    x = 113,008.36

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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.