Home / 206,975.67-285,650.09-115,104.11

Finding the Fourth Proportional to 206,975.67, 285,650.09 and 115,104.11

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Solution

The fourth proportional to 206,975.67, 285,650.09 and 115,104.11 is: 158,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,975.67 : 285,650.09 = 115,104.11 : x
  2. Step 2: Convert to fraction form
    206,975.67/285,650.09 = 115,104.11/x
  3. Step 3: Cross multiply
    206,975.67x = 285,650.09 × 115,104.11
  4. Step 4: Simplify right side
    206,975.67x = 32,879,497,377.10
  5. Step 5: Solve for x
    x = 32,879,497,377.10/206,975.67
  6. Step 6: Final answer
    x = 158,856.82

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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.