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Finding the Fourth Proportional to 118.10, 175.73 and 117.73

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Solution

The fourth proportional to 118.10, 175.73 and 117.73 is: 175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.10 : 175.73 = 117.73 : x
  2. Step 2: Convert to fraction form
    118.10/175.73 = 117.73/x
  3. Step 3: Cross multiply
    118.10x = 175.73 × 117.73
  4. Step 4: Simplify right side
    118.10x = 20,688.69
  5. Step 5: Solve for x
    x = 20,688.69/118.10
  6. Step 6: Final answer
    x = 175.18

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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.