Home / 212,759.11-319,240.04-132,775.35

Finding the Fourth Proportional to 212,759.11, 319,240.04 and 132,775.35

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Solution

The fourth proportional to 212,759.11, 319,240.04 and 132,775.35 is: 199,226.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,759.11 : 319,240.04 = 132,775.35 : x
  2. Step 2: Convert to fraction form
    212,759.11/319,240.04 = 132,775.35/x
  3. Step 3: Cross multiply
    212,759.11x = 319,240.04 × 132,775.35
  4. Step 4: Simplify right side
    212,759.11x = 42,387,207,979.71
  5. Step 5: Solve for x
    x = 42,387,207,979.71/212,759.11
  6. Step 6: Final answer
    x = 199,226.29

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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.