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Finding the Fourth Proportional to 119.11, 177.94 and 95.09

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Solution

The fourth proportional to 119.11, 177.94 and 95.09 is: 142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.11 : 177.94 = 95.09 : x
  2. Step 2: Convert to fraction form
    119.11/177.94 = 95.09/x
  3. Step 3: Cross multiply
    119.11x = 177.94 × 95.09
  4. Step 4: Simplify right side
    119.11x = 16,920.31
  5. Step 5: Solve for x
    x = 16,920.31/119.11
  6. Step 6: Final answer
    x = 142.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.