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Finding the Fourth Proportional to 120.03, 165.86 and 95.67

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Solution

The fourth proportional to 120.03, 165.86 and 95.67 is: 132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120.03 : 165.86 = 95.67 : x
  2. Step 2: Convert to fraction form
    120.03/165.86 = 95.67/x
  3. Step 3: Cross multiply
    120.03x = 165.86 × 95.67
  4. Step 4: Simplify right side
    120.03x = 15,867.35
  5. Step 5: Solve for x
    x = 15,867.35/120.03
  6. Step 6: Final answer
    x = 132.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.