Home / 135,882.35-187,519.62-75,456.75

Finding the Fourth Proportional to 135,882.35, 187,519.62 and 75,456.75

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Solution

The fourth proportional to 135,882.35, 187,519.62 and 75,456.75 is: 104,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,882.35 : 187,519.62 = 75,456.75 : x
  2. Step 2: Convert to fraction form
    135,882.35/187,519.62 = 75,456.75/x
  3. Step 3: Cross multiply
    135,882.35x = 187,519.62 × 75,456.75
  4. Step 4: Simplify right side
    135,882.35x = 14,149,621,086.44
  5. Step 5: Solve for x
    x = 14,149,621,086.44/135,882.35
  6. Step 6: Final answer
    x = 104,131.41

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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.