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Finding the Fourth Proportional to 133.02, 183.38 and 93.65

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Solution

The fourth proportional to 133.02, 183.38 and 93.65 is: 129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.02 : 183.38 = 93.65 : x
  2. Step 2: Convert to fraction form
    133.02/183.38 = 93.65/x
  3. Step 3: Cross multiply
    133.02x = 183.38 × 93.65
  4. Step 4: Simplify right side
    133.02x = 17,172.15
  5. Step 5: Solve for x
    x = 17,172.15/133.02
  6. Step 6: Final answer
    x = 129.09

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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.