Home / 136,135.43-187,672.17-90,796.87

Finding the Fourth Proportional to 136,135.43, 187,672.17 and 90,796.87

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Solution

The fourth proportional to 136,135.43, 187,672.17 and 90,796.87 is: 125,169.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,135.43 : 187,672.17 = 90,796.87 : x
  2. Step 2: Convert to fraction form
    136,135.43/187,672.17 = 90,796.87/x
  3. Step 3: Cross multiply
    136,135.43x = 187,672.17 × 90,796.87
  4. Step 4: Simplify right side
    136,135.43x = 17,040,045,958.92
  5. Step 5: Solve for x
    x = 17,040,045,958.92/136,135.43
  6. Step 6: Final answer
    x = 125,169.81

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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.