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Finding the Fourth Proportional to 111.00, 153.07 and 67.33

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Solution

The fourth proportional to 111.00, 153.07 and 67.33 is: 92.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.00 : 153.07 = 67.33 : x
  2. Step 2: Convert to fraction form
    111.00/153.07 = 67.33/x
  3. Step 3: Cross multiply
    111.00x = 153.07 × 67.33
  4. Step 4: Simplify right side
    111.00x = 10,306.60
  5. Step 5: Solve for x
    x = 10,306.60/111.00
  6. Step 6: Final answer
    x = 92.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.