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Finding the Fourth Proportional to 106.16, 158.44 and 94.04

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Solution

The fourth proportional to 106.16, 158.44 and 94.04 is: 140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.16 : 158.44 = 94.04 : x
  2. Step 2: Convert to fraction form
    106.16/158.44 = 94.04/x
  3. Step 3: Cross multiply
    106.16x = 158.44 × 94.04
  4. Step 4: Simplify right side
    106.16x = 14,899.70
  5. Step 5: Solve for x
    x = 14,899.70/106.16
  6. Step 6: Final answer
    x = 140.35

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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.