Home / 231,748.44-319,786.41-129,759.72

Finding the Fourth Proportional to 231,748.44, 319,786.41 and 129,759.72

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Solution

The fourth proportional to 231,748.44, 319,786.41 and 129,759.72 is: 179,053.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,748.44 : 319,786.41 = 129,759.72 : x
  2. Step 2: Convert to fraction form
    231,748.44/319,786.41 = 129,759.72/x
  3. Step 3: Cross multiply
    231,748.44x = 319,786.41 × 129,759.72
  4. Step 4: Simplify right side
    231,748.44x = 41,495,395,021.41
  5. Step 5: Solve for x
    x = 41,495,395,021.41/231,748.44
  6. Step 6: Final answer
    x = 179,053.61

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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.