Home / 135,669.22-187,223.52-75,249.12

Finding the Fourth Proportional to 135,669.22, 187,223.52 and 75,249.12

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Solution

The fourth proportional to 135,669.22, 187,223.52 and 75,249.12 is: 103,843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,669.22 : 187,223.52 = 75,249.12 : x
  2. Step 2: Convert to fraction form
    135,669.22/187,223.52 = 75,249.12/x
  3. Step 3: Cross multiply
    135,669.22x = 187,223.52 × 75,249.12
  4. Step 4: Simplify right side
    135,669.22x = 14,088,405,123.30
  5. Step 5: Solve for x
    x = 14,088,405,123.30/135,669.22
  6. Step 6: Final answer
    x = 103,843.78

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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.