Home / 206,822.16-285,523.58-139,194.65

Finding the Fourth Proportional to 206,822.16, 285,523.58 and 139,194.65

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Solution

The fourth proportional to 206,822.16, 285,523.58 and 139,194.65 is: 192,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,822.16 : 285,523.58 = 139,194.65 : x
  2. Step 2: Convert to fraction form
    206,822.16/285,523.58 = 139,194.65/x
  3. Step 3: Cross multiply
    206,822.16x = 285,523.58 × 139,194.65
  4. Step 4: Simplify right side
    206,822.16x = 39,743,354,784.85
  5. Step 5: Solve for x
    x = 39,743,354,784.85/206,822.16
  6. Step 6: Final answer
    x = 192,161.98

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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.