Home / 207,986.34-311,979.51-67,744.95

Finding the Fourth Proportional to 207,986.34, 311,979.51 and 67,744.95

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Solution

The fourth proportional to 207,986.34, 311,979.51 and 67,744.95 is: 101,617.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,986.34 : 311,979.51 = 67,744.95 : x
  2. Step 2: Convert to fraction form
    207,986.34/311,979.51 = 67,744.95/x
  3. Step 3: Cross multiply
    207,986.34x = 311,979.51 × 67,744.95
  4. Step 4: Simplify right side
    207,986.34x = 21,135,036,305.97
  5. Step 5: Solve for x
    x = 21,135,036,305.97/207,986.34
  6. Step 6: Final answer
    x = 101,617.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.