Home / 231,723.40-319,780.02-131,119.24

Finding the Fourth Proportional to 231,723.40, 319,780.02 and 131,119.24

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Solution

The fourth proportional to 231,723.40, 319,780.02 and 131,119.24 is: 180,945.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,723.40 : 319,780.02 = 131,119.24 : x
  2. Step 2: Convert to fraction form
    231,723.40/319,780.02 = 131,119.24/x
  3. Step 3: Cross multiply
    231,723.40x = 319,780.02 × 131,119.24
  4. Step 4: Simplify right side
    231,723.40x = 41,929,313,189.58
  5. Step 5: Solve for x
    x = 41,929,313,189.58/231,723.40
  6. Step 6: Final answer
    x = 180,945.53

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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.