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Finding the Fourth Proportional to 119.88, 165.52 and 94.95

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Solution

The fourth proportional to 119.88, 165.52 and 94.95 is: 131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.88 : 165.52 = 94.95 : x
  2. Step 2: Convert to fraction form
    119.88/165.52 = 94.95/x
  3. Step 3: Cross multiply
    119.88x = 165.52 × 94.95
  4. Step 4: Simplify right side
    119.88x = 15,716.12
  5. Step 5: Solve for x
    x = 15,716.12/119.88
  6. Step 6: Final answer
    x = 131.10

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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.