Home / 231,421.82-319,352.29-134,625.90

Finding the Fourth Proportional to 231,421.82, 319,352.29 and 134,625.90

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Solution

The fourth proportional to 231,421.82, 319,352.29 and 134,625.90 is: 185,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,421.82 : 319,352.29 = 134,625.90 : x
  2. Step 2: Convert to fraction form
    231,421.82/319,352.29 = 134,625.90/x
  3. Step 3: Cross multiply
    231,421.82x = 319,352.29 × 134,625.90
  4. Step 4: Simplify right side
    231,421.82x = 42,993,090,319.32
  5. Step 5: Solve for x
    x = 42,993,090,319.32/231,421.82
  6. Step 6: Final answer
    x = 185,778.04

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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.