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Finding the Fourth Proportional to 133.16, 184.20 and 111.26

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Solution

The fourth proportional to 133.16, 184.20 and 111.26 is: 153.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.16 : 184.20 = 111.26 : x
  2. Step 2: Convert to fraction form
    133.16/184.20 = 111.26/x
  3. Step 3: Cross multiply
    133.16x = 184.20 × 111.26
  4. Step 4: Simplify right side
    133.16x = 20,494.09
  5. Step 5: Solve for x
    x = 20,494.09/133.16
  6. Step 6: Final answer
    x = 153.91

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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.