Home / 231,934.14-320,072.52-135,135.90

Finding the Fourth Proportional to 231,934.14, 320,072.52 and 135,135.90

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Solution

The fourth proportional to 231,934.14, 320,072.52 and 135,135.90 is: 186,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,934.14 : 320,072.52 = 135,135.90 : x
  2. Step 2: Convert to fraction form
    231,934.14/320,072.52 = 135,135.90/x
  3. Step 3: Cross multiply
    231,934.14x = 320,072.52 × 135,135.90
  4. Step 4: Simplify right side
    231,934.14x = 43,253,288,055.47
  5. Step 5: Solve for x
    x = 43,253,288,055.47/231,934.14
  6. Step 6: Final answer
    x = 186,489.53

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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.