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Finding the Fourth Proportional to 169.71, 234.20 and 92.09

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Solution

The fourth proportional to 169.71, 234.20 and 92.09 is: 127.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.71 : 234.20 = 92.09 : x
  2. Step 2: Convert to fraction form
    169.71/234.20 = 92.09/x
  3. Step 3: Cross multiply
    169.71x = 234.20 × 92.09
  4. Step 4: Simplify right side
    169.71x = 21,566.89
  5. Step 5: Solve for x
    x = 21,566.89/169.71
  6. Step 6: Final answer
    x = 127.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.