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Finding the Fourth Proportional to 106.25, 158.53 and 93.94

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Solution

The fourth proportional to 106.25, 158.53 and 93.94 is: 140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.25 : 158.53 = 93.94 : x
  2. Step 2: Convert to fraction form
    106.25/158.53 = 93.94/x
  3. Step 3: Cross multiply
    106.25x = 158.53 × 93.94
  4. Step 4: Simplify right side
    106.25x = 14,892.31
  5. Step 5: Solve for x
    x = 14,892.31/106.25
  6. Step 6: Final answer
    x = 140.16

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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.