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Finding the Fourth Proportional to 133.75, 199.53 and 130.03

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Solution

The fourth proportional to 133.75, 199.53 and 130.03 is: 193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.75 : 199.53 = 130.03 : x
  2. Step 2: Convert to fraction form
    133.75/199.53 = 130.03/x
  3. Step 3: Cross multiply
    133.75x = 199.53 × 130.03
  4. Step 4: Simplify right side
    133.75x = 25,943.83
  5. Step 5: Solve for x
    x = 25,943.83/133.75
  6. Step 6: Final answer
    x = 193.98

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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.