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Finding the Fourth Proportional to 133.58, 183.93 and 107.29

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Solution

The fourth proportional to 133.58, 183.93 and 107.29 is: 147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.58 : 183.93 = 107.29 : x
  2. Step 2: Convert to fraction form
    133.58/183.93 = 107.29/x
  3. Step 3: Cross multiply
    133.58x = 183.93 × 107.29
  4. Step 4: Simplify right side
    133.58x = 19,733.85
  5. Step 5: Solve for x
    x = 19,733.85/133.58
  6. Step 6: Final answer
    x = 147.73

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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.