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Finding the Fourth Proportional to 133.08, 199.54 and 59.91

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Solution

The fourth proportional to 133.08, 199.54 and 59.91 is: 89.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.08 : 199.54 = 59.91 : x
  2. Step 2: Convert to fraction form
    133.08/199.54 = 59.91/x
  3. Step 3: Cross multiply
    133.08x = 199.54 × 59.91
  4. Step 4: Simplify right side
    133.08x = 11,954.44
  5. Step 5: Solve for x
    x = 11,954.44/133.08
  6. Step 6: Final answer
    x = 89.83

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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.