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Finding the Fourth Proportional to 132.96, 199.68 and 130.08

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Solution

The fourth proportional to 132.96, 199.68 and 130.08 is: 195.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.96 : 199.68 = 130.08 : x
  2. Step 2: Convert to fraction form
    132.96/199.68 = 130.08/x
  3. Step 3: Cross multiply
    132.96x = 199.68 × 130.08
  4. Step 4: Simplify right side
    132.96x = 25,974.37
  5. Step 5: Solve for x
    x = 25,974.37/132.96
  6. Step 6: Final answer
    x = 195.35

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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.