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Finding the Fourth Proportional to 111.34, 153.37 and 95.53

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Solution

The fourth proportional to 111.34, 153.37 and 95.53 is: 131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.34 : 153.37 = 95.53 : x
  2. Step 2: Convert to fraction form
    111.34/153.37 = 95.53/x
  3. Step 3: Cross multiply
    111.34x = 153.37 × 95.53
  4. Step 4: Simplify right side
    111.34x = 14,651.44
  5. Step 5: Solve for x
    x = 14,651.44/111.34
  6. Step 6: Final answer
    x = 131.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.