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Finding the Fourth Proportional to 159,287.88, 219,781.98 and 92,181

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Solution

The fourth proportional to 159,287.88, 219,781.98 and 92,181 is: 127,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,287.88 : 219,781.98 = 92,181 : x
  2. Step 2: Convert to fraction form
    159,287.88/219,781.98 = 92,181/x
  3. Step 3: Cross multiply
    159,287.88x = 219,781.98 × 92,181
  4. Step 4: Simplify right side
    159,287.88x = 20,259,722,698.38
  5. Step 5: Solve for x
    x = 20,259,722,698.38/159,287.88
  6. Step 6: Final answer
    x = 127,189.35

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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.