Home / 123,738.44-170,759.61-67,149.81

Finding the Fourth Proportional to 123,738.44, 170,759.61 and 67,149.81

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Solution

The fourth proportional to 123,738.44, 170,759.61 and 67,149.81 is: 92,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,738.44 : 170,759.61 = 67,149.81 : x
  2. Step 2: Convert to fraction form
    123,738.44/170,759.61 = 67,149.81/x
  3. Step 3: Cross multiply
    123,738.44x = 170,759.61 × 67,149.81
  4. Step 4: Simplify right side
    123,738.44x = 11,466,475,367.17
  5. Step 5: Solve for x
    x = 11,466,475,367.17/123,738.44
  6. Step 6: Final answer
    x = 92,667.05

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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.