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Finding the Fourth Proportional to 116.98, 174.62 and 108.96

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Solution

The fourth proportional to 116.98, 174.62 and 108.96 is: 162.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.98 : 174.62 = 108.96 : x
  2. Step 2: Convert to fraction form
    116.98/174.62 = 108.96/x
  3. Step 3: Cross multiply
    116.98x = 174.62 × 108.96
  4. Step 4: Simplify right side
    116.98x = 19,026.60
  5. Step 5: Solve for x
    x = 19,026.60/116.98
  6. Step 6: Final answer
    x = 162.65

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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.