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Finding the Fourth Proportional to 118.04, 177.73 and 97.66

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Solution

The fourth proportional to 118.04, 177.73 and 97.66 is: 147.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.04 : 177.73 = 97.66 : x
  2. Step 2: Convert to fraction form
    118.04/177.73 = 97.66/x
  3. Step 3: Cross multiply
    118.04x = 177.73 × 97.66
  4. Step 4: Simplify right side
    118.04x = 17,357.11
  5. Step 5: Solve for x
    x = 17,357.11/118.04
  6. Step 6: Final answer
    x = 147.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.