Home / 123,393.28-170,283.92-66,805.84

Finding the Fourth Proportional to 123,393.28, 170,283.92 and 66,805.84

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Solution

The fourth proportional to 123,393.28, 170,283.92 and 66,805.84 is: 92,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,393.28 : 170,283.92 = 66,805.84 : x
  2. Step 2: Convert to fraction form
    123,393.28/170,283.92 = 66,805.84/x
  3. Step 3: Cross multiply
    123,393.28x = 170,283.92 × 66,805.84
  4. Step 4: Simplify right side
    123,393.28x = 11,375,960,314.09
  5. Step 5: Solve for x
    x = 11,375,960,314.09/123,393.28
  6. Step 6: Final answer
    x = 92,192.71

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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.