Home / 231,742.56-319,789.44-129,750.24

Finding the Fourth Proportional to 231,742.56, 319,789.44 and 129,750.24

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Solution

The fourth proportional to 231,742.56, 319,789.44 and 129,750.24 is: 179,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,742.56 : 319,789.44 = 129,750.24 : x
  2. Step 2: Convert to fraction form
    231,742.56/319,789.44 = 129,750.24/x
  3. Step 3: Cross multiply
    231,742.56x = 319,789.44 × 129,750.24
  4. Step 4: Simplify right side
    231,742.56x = 41,492,756,589.47
  5. Step 5: Solve for x
    x = 41,492,756,589.47/231,742.56
  6. Step 6: Final answer
    x = 179,046.77

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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.