Home / 231,677.27-319,696.97-129,679.37

Finding the Fourth Proportional to 231,677.27, 319,696.97 and 129,679.37

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Solution

The fourth proportional to 231,677.27, 319,696.97 and 129,679.37 is: 178,947.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,677.27 : 319,696.97 = 129,679.37 : x
  2. Step 2: Convert to fraction form
    231,677.27/319,696.97 = 129,679.37/x
  3. Step 3: Cross multiply
    231,677.27x = 319,696.97 × 129,679.37
  4. Step 4: Simplify right side
    231,677.27x = 41,458,099,413.63
  5. Step 5: Solve for x
    x = 41,458,099,413.63/231,677.27
  6. Step 6: Final answer
    x = 178,947.64

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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.