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Finding the Fourth Proportional to 108.22, 161.63 and 96.07

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Solution

The fourth proportional to 108.22, 161.63 and 96.07 is: 143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.22 : 161.63 = 96.07 : x
  2. Step 2: Convert to fraction form
    108.22/161.63 = 96.07/x
  3. Step 3: Cross multiply
    108.22x = 161.63 × 96.07
  4. Step 4: Simplify right side
    108.22x = 15,527.79
  5. Step 5: Solve for x
    x = 15,527.79/108.22
  6. Step 6: Final answer
    x = 143.48

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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.