Home / 231,911.46-319,965.08-129,923.10

Finding the Fourth Proportional to 231,911.46, 319,965.08 and 129,923.10

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Solution

The fourth proportional to 231,911.46, 319,965.08 and 129,923.10 is: 179,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,911.46 : 319,965.08 = 129,923.10 : x
  2. Step 2: Convert to fraction form
    231,911.46/319,965.08 = 129,923.10/x
  3. Step 3: Cross multiply
    231,911.46x = 319,965.08 × 129,923.10
  4. Step 4: Simplify right side
    231,911.46x = 41,570,854,435.73
  5. Step 5: Solve for x
    x = 41,570,854,435.73/231,911.46
  6. Step 6: Final answer
    x = 179,253.13

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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.