Home / 212,760.11-319,241.54-132,776.35

Finding the Fourth Proportional to 212,760.11, 319,241.54 and 132,776.35

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Solution

The fourth proportional to 212,760.11, 319,241.54 and 132,776.35 is: 199,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,760.11 : 319,241.54 = 132,776.35 : x
  2. Step 2: Convert to fraction form
    212,760.11/319,241.54 = 132,776.35/x
  3. Step 3: Cross multiply
    212,760.11x = 319,241.54 × 132,776.35
  4. Step 4: Simplify right side
    212,760.11x = 42,387,726,449.58
  5. Step 5: Solve for x
    x = 42,387,726,449.58/212,760.11
  6. Step 6: Final answer
    x = 199,227.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.