Home / 206,578.08-285,083.41-115,939.66

Finding the Fourth Proportional to 206,578.08, 285,083.41 and 115,939.66

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Solution

The fourth proportional to 206,578.08, 285,083.41 and 115,939.66 is: 159,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,578.08 : 285,083.41 = 115,939.66 : x
  2. Step 2: Convert to fraction form
    206,578.08/285,083.41 = 115,939.66/x
  3. Step 3: Cross multiply
    206,578.08x = 285,083.41 × 115,939.66
  4. Step 4: Simplify right side
    206,578.08x = 33,052,473,627.04
  5. Step 5: Solve for x
    x = 33,052,473,627.04/206,578.08
  6. Step 6: Final answer
    x = 159,999.91

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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.