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Finding the Fourth Proportional to 117.53, 175.07 and 110.55

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Solution

The fourth proportional to 117.53, 175.07 and 110.55 is: 164.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.53 : 175.07 = 110.55 : x
  2. Step 2: Convert to fraction form
    117.53/175.07 = 110.55/x
  3. Step 3: Cross multiply
    117.53x = 175.07 × 110.55
  4. Step 4: Simplify right side
    117.53x = 19,353.44
  5. Step 5: Solve for x
    x = 19,353.44/117.53
  6. Step 6: Final answer
    x = 164.68

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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.