Home / 90,198.39-135,310.55-27,873.75

Finding the Fourth Proportional to 90,198.39, 135,310.55 and 27,873.75

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Solution

The fourth proportional to 90,198.39, 135,310.55 and 27,873.75 is: 41,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,198.39 : 135,310.55 = 27,873.75 : x
  2. Step 2: Convert to fraction form
    90,198.39/135,310.55 = 27,873.75/x
  3. Step 3: Cross multiply
    90,198.39x = 135,310.55 × 27,873.75
  4. Step 4: Simplify right side
    90,198.39x = 3,771,612,303.69
  5. Step 5: Solve for x
    x = 3,771,612,303.69/90,198.39
  6. Step 6: Final answer
    x = 41,814.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.