Home / 206,839.18-285,437.91-117,415.18

Finding the Fourth Proportional to 206,839.18, 285,437.91 and 117,415.18

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Solution

The fourth proportional to 206,839.18, 285,437.91 and 117,415.18 is: 162,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,839.18 : 285,437.91 = 117,415.18 : x
  2. Step 2: Convert to fraction form
    206,839.18/285,437.91 = 117,415.18/x
  3. Step 3: Cross multiply
    206,839.18x = 285,437.91 × 117,415.18
  4. Step 4: Simplify right side
    206,839.18x = 33,514,743,581.47
  5. Step 5: Solve for x
    x = 33,514,743,581.47/206,839.18
  6. Step 6: Final answer
    x = 162,032.86

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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.