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Finding the Fourth Proportional to 116.09, 174.14 and 98.95

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Solution

The fourth proportional to 116.09, 174.14 and 98.95 is: 148.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.09 : 174.14 = 98.95 : x
  2. Step 2: Convert to fraction form
    116.09/174.14 = 98.95/x
  3. Step 3: Cross multiply
    116.09x = 174.14 × 98.95
  4. Step 4: Simplify right side
    116.09x = 17,231.15
  5. Step 5: Solve for x
    x = 17,231.15/116.09
  6. Step 6: Final answer
    x = 148.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.