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Finding the Fourth Proportional to 108.88, 150.12 and 88.08

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Solution

The fourth proportional to 108.88, 150.12 and 88.08 is: 121.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.88 : 150.12 = 88.08 : x
  2. Step 2: Convert to fraction form
    108.88/150.12 = 88.08/x
  3. Step 3: Cross multiply
    108.88x = 150.12 × 88.08
  4. Step 4: Simplify right side
    108.88x = 13,222.57
  5. Step 5: Solve for x
    x = 13,222.57/108.88
  6. Step 6: Final answer
    x = 121.44

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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.