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Finding the Fourth Proportional to 133.37, 199.75 and 94.72

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Solution

The fourth proportional to 133.37, 199.75 and 94.72 is: 141.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.37 : 199.75 = 94.72 : x
  2. Step 2: Convert to fraction form
    133.37/199.75 = 94.72/x
  3. Step 3: Cross multiply
    133.37x = 199.75 × 94.72
  4. Step 4: Simplify right side
    133.37x = 18,920.32
  5. Step 5: Solve for x
    x = 18,920.32/133.37
  6. Step 6: Final answer
    x = 141.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.