Home / 149,947.14-206,932.62-81,968.73

Finding the Fourth Proportional to 149,947.14, 206,932.62 and 81,968.73

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Solution

The fourth proportional to 149,947.14, 206,932.62 and 81,968.73 is: 113,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,947.14 : 206,932.62 = 81,968.73 : x
  2. Step 2: Convert to fraction form
    149,947.14/206,932.62 = 81,968.73/x
  3. Step 3: Cross multiply
    149,947.14x = 206,932.62 × 81,968.73
  4. Step 4: Simplify right side
    149,947.14x = 16,962,004,056.97
  5. Step 5: Solve for x
    x = 16,962,004,056.97/149,947.14
  6. Step 6: Final answer
    x = 113,119.89

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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.