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Finding the Fourth Proportional to 107.16, 159.90 and 94.98

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Solution

The fourth proportional to 107.16, 159.90 and 94.98 is: 141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.16 : 159.90 = 94.98 : x
  2. Step 2: Convert to fraction form
    107.16/159.90 = 94.98/x
  3. Step 3: Cross multiply
    107.16x = 159.90 × 94.98
  4. Step 4: Simplify right side
    107.16x = 15,187.30
  5. Step 5: Solve for x
    x = 15,187.30/107.16
  6. Step 6: Final answer
    x = 141.73

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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.