Home / 231,968.25-320,110.79-136,481.13

Finding the Fourth Proportional to 231,968.25, 320,110.79 and 136,481.13

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Solution

The fourth proportional to 231,968.25, 320,110.79 and 136,481.13 is: 188,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,968.25 : 320,110.79 = 136,481.13 : x
  2. Step 2: Convert to fraction form
    231,968.25/320,110.79 = 136,481.13/x
  3. Step 3: Cross multiply
    231,968.25x = 320,110.79 × 136,481.13
  4. Step 4: Simplify right side
    231,968.25x = 43,689,081,661.99
  5. Step 5: Solve for x
    x = 43,689,081,661.99/231,968.25
  6. Step 6: Final answer
    x = 188,340.78

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1.5x scale

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.