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Finding the Fourth Proportional to 133.95, 199.83 and 130.86

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Solution

The fourth proportional to 133.95, 199.83 and 130.86 is: 195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.95 : 199.83 = 130.86 : x
  2. Step 2: Convert to fraction form
    133.95/199.83 = 130.86/x
  3. Step 3: Cross multiply
    133.95x = 199.83 × 130.86
  4. Step 4: Simplify right side
    133.95x = 26,149.75
  5. Step 5: Solve for x
    x = 26,149.75/133.95
  6. Step 6: Final answer
    x = 195.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.