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Finding the Fourth Proportional to 133.67, 201.29 and 99.68

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Solution

The fourth proportional to 133.67, 201.29 and 99.68 is: 150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.67 : 201.29 = 99.68 : x
  2. Step 2: Convert to fraction form
    133.67/201.29 = 99.68/x
  3. Step 3: Cross multiply
    133.67x = 201.29 × 99.68
  4. Step 4: Simplify right side
    133.67x = 20,063.08
  5. Step 5: Solve for x
    x = 20,063.08/133.67
  6. Step 6: Final answer
    x = 150.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.