Home / 135,923.59-187,578.62-82,218.43

Finding the Fourth Proportional to 135,923.59, 187,578.62 and 82,218.43

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Solution

The fourth proportional to 135,923.59, 187,578.62 and 82,218.43 is: 113,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,923.59 : 187,578.62 = 82,218.43 : x
  2. Step 2: Convert to fraction form
    135,923.59/187,578.62 = 82,218.43/x
  3. Step 3: Cross multiply
    135,923.59x = 187,578.62 × 82,218.43
  4. Step 4: Simplify right side
    135,923.59x = 15,422,419,226.87
  5. Step 5: Solve for x
    x = 15,422,419,226.87/135,923.59
  6. Step 6: Final answer
    x = 113,463.89

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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.