Home / 206,979.96-285,640.38-116,337.72

Finding the Fourth Proportional to 206,979.96, 285,640.38 and 116,337.72

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Solution

The fourth proportional to 206,979.96, 285,640.38 and 116,337.72 is: 160,550.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,979.96 : 285,640.38 = 116,337.72 : x
  2. Step 2: Convert to fraction form
    206,979.96/285,640.38 = 116,337.72/x
  3. Step 3: Cross multiply
    206,979.96x = 285,640.38 × 116,337.72
  4. Step 4: Simplify right side
    206,979.96x = 33,230,750,549.13
  5. Step 5: Solve for x
    x = 33,230,750,549.13/206,979.96
  6. Step 6: Final answer
    x = 160,550.57

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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.