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Finding the Fourth Proportional to 114.98, 158.55 and 94.19

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Solution

The fourth proportional to 114.98, 158.55 and 94.19 is: 129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.98 : 158.55 = 94.19 : x
  2. Step 2: Convert to fraction form
    114.98/158.55 = 94.19/x
  3. Step 3: Cross multiply
    114.98x = 158.55 × 94.19
  4. Step 4: Simplify right side
    114.98x = 14,933.82
  5. Step 5: Solve for x
    x = 14,933.82/114.98
  6. Step 6: Final answer
    x = 129.88

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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.