Home / 231,218.45-319,081.34-135,725.13

Finding the Fourth Proportional to 231,218.45, 319,081.34 and 135,725.13

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Solution

The fourth proportional to 231,218.45, 319,081.34 and 135,725.13 is: 187,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,218.45 : 319,081.34 = 135,725.13 : x
  2. Step 2: Convert to fraction form
    231,218.45/319,081.34 = 135,725.13/x
  3. Step 3: Cross multiply
    231,218.45x = 319,081.34 × 135,725.13
  4. Step 4: Simplify right side
    231,218.45x = 43,307,355,673.45
  5. Step 5: Solve for x
    x = 43,307,355,673.45/231,218.45
  6. Step 6: Final answer
    x = 187,300.61

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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.