Home / 123,326.89-170,191.11-66,738.27

Finding the Fourth Proportional to 123,326.89, 170,191.11 and 66,738.27

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Solution

The fourth proportional to 123,326.89, 170,191.11 and 66,738.27 is: 92,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,326.89 : 170,191.11 = 66,738.27 : x
  2. Step 2: Convert to fraction form
    123,326.89/170,191.11 = 66,738.27/x
  3. Step 3: Cross multiply
    123,326.89x = 170,191.11 × 66,738.27
  4. Step 4: Simplify right side
    123,326.89x = 11,358,259,399.82
  5. Step 5: Solve for x
    x = 11,358,259,399.82/123,326.89
  6. Step 6: Final answer
    x = 92,098.81

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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.