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Finding the Fourth Proportional to 106.35, 147.11 and 94.11

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Solution

The fourth proportional to 106.35, 147.11 and 94.11 is: 130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.35 : 147.11 = 94.11 : x
  2. Step 2: Convert to fraction form
    106.35/147.11 = 94.11/x
  3. Step 3: Cross multiply
    106.35x = 147.11 × 94.11
  4. Step 4: Simplify right side
    106.35x = 13,844.05
  5. Step 5: Solve for x
    x = 13,844.05/106.35
  6. Step 6: Final answer
    x = 130.17

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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.