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Finding the Fourth Proportional to 118.94, 179.26 and 113.10

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Solution

The fourth proportional to 118.94, 179.26 and 113.10 is: 170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.94 : 179.26 = 113.10 : x
  2. Step 2: Convert to fraction form
    118.94/179.26 = 113.10/x
  3. Step 3: Cross multiply
    118.94x = 179.26 × 113.10
  4. Step 4: Simplify right side
    118.94x = 20,274.31
  5. Step 5: Solve for x
    x = 20,274.31/118.94
  6. Step 6: Final answer
    x = 170.46

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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.