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Finding the Fourth Proportional to 118.83, 177.48 and 93.09

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Solution

The fourth proportional to 118.83, 177.48 and 93.09 is: 139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.83 : 177.48 = 93.09 : x
  2. Step 2: Convert to fraction form
    118.83/177.48 = 93.09/x
  3. Step 3: Cross multiply
    118.83x = 177.48 × 93.09
  4. Step 4: Simplify right side
    118.83x = 16,521.61
  5. Step 5: Solve for x
    x = 16,521.61/118.83
  6. Step 6: Final answer
    x = 139.04

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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.