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Finding the Fourth Proportional to 108.07, 149.02 and 94.84

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Solution

The fourth proportional to 108.07, 149.02 and 94.84 is: 130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.07 : 149.02 = 94.84 : x
  2. Step 2: Convert to fraction form
    108.07/149.02 = 94.84/x
  3. Step 3: Cross multiply
    108.07x = 149.02 × 94.84
  4. Step 4: Simplify right side
    108.07x = 14,133.06
  5. Step 5: Solve for x
    x = 14,133.06/108.07
  6. Step 6: Final answer
    x = 130.78

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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.