Home / 135,550.11-187,060.22-75,121.75

Finding the Fourth Proportional to 135,550.11, 187,060.22 and 75,121.75

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Solution

The fourth proportional to 135,550.11, 187,060.22 and 75,121.75 is: 103,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,550.11 : 187,060.22 = 75,121.75 : x
  2. Step 2: Convert to fraction form
    135,550.11/187,060.22 = 75,121.75/x
  3. Step 3: Cross multiply
    135,550.11x = 187,060.22 × 75,121.75
  4. Step 4: Simplify right side
    135,550.11x = 14,052,291,081.79
  5. Step 5: Solve for x
    x = 14,052,291,081.79/135,550.11
  6. Step 6: Final answer
    x = 103,668.61

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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.