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Finding the Fourth Proportional to 133.23, 199.41 and 120.93

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Solution

The fourth proportional to 133.23, 199.41 and 120.93 is: 181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.23 : 199.41 = 120.93 : x
  2. Step 2: Convert to fraction form
    133.23/199.41 = 120.93/x
  3. Step 3: Cross multiply
    133.23x = 199.41 × 120.93
  4. Step 4: Simplify right side
    133.23x = 24,114.65
  5. Step 5: Solve for x
    x = 24,114.65/133.23
  6. Step 6: Final answer
    x = 181.00

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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.