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Finding the Fourth Proportional to 118.02, 175.98 and 113.51

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Solution

The fourth proportional to 118.02, 175.98 and 113.51 is: 169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.02 : 175.98 = 113.51 : x
  2. Step 2: Convert to fraction form
    118.02/175.98 = 113.51/x
  3. Step 3: Cross multiply
    118.02x = 175.98 × 113.51
  4. Step 4: Simplify right side
    118.02x = 19,975.54
  5. Step 5: Solve for x
    x = 19,975.54/118.02
  6. Step 6: Final answer
    x = 169.25

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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.