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Finding the Fourth Proportional to 108.68, 163.61 and 93.02

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Solution

The fourth proportional to 108.68, 163.61 and 93.02 is: 140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.68 : 163.61 = 93.02 : x
  2. Step 2: Convert to fraction form
    108.68/163.61 = 93.02/x
  3. Step 3: Cross multiply
    108.68x = 163.61 × 93.02
  4. Step 4: Simplify right side
    108.68x = 15,219.00
  5. Step 5: Solve for x
    x = 15,219.00/108.68
  6. Step 6: Final answer
    x = 140.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.