Home / 123,331.79-170,198.41-66,743.17

Finding the Fourth Proportional to 123,331.79, 170,198.41 and 66,743.17

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Solution

The fourth proportional to 123,331.79, 170,198.41 and 66,743.17 is: 92,105.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,331.79 : 170,198.41 = 66,743.17 : x
  2. Step 2: Convert to fraction form
    123,331.79/170,198.41 = 66,743.17/x
  3. Step 3: Cross multiply
    123,331.79x = 170,198.41 × 66,743.17
  4. Step 4: Simplify right side
    123,331.79x = 11,359,581,078.64
  5. Step 5: Solve for x
    x = 11,359,581,078.64/123,331.79
  6. Step 6: Final answer
    x = 92,105.86

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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.