Home / 217,705.08-326,578.25-84,595.61

Finding the Fourth Proportional to 217,705.08, 326,578.25 and 84,595.61

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Solution

The fourth proportional to 217,705.08, 326,578.25 and 84,595.61 is: 126,901.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,705.08 : 326,578.25 = 84,595.61 : x
  2. Step 2: Convert to fraction form
    217,705.08/326,578.25 = 84,595.61/x
  3. Step 3: Cross multiply
    217,705.08x = 326,578.25 × 84,595.61
  4. Step 4: Simplify right side
    217,705.08x = 27,627,084,215.61
  5. Step 5: Solve for x
    x = 27,627,084,215.61/217,705.08
  6. Step 6: Final answer
    x = 126,901.42

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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.