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Finding the Fourth Proportional to 116.94, 162.13 and 110.79

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Solution

The fourth proportional to 116.94, 162.13 and 110.79 is: 153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.94 : 162.13 = 110.79 : x
  2. Step 2: Convert to fraction form
    116.94/162.13 = 110.79/x
  3. Step 3: Cross multiply
    116.94x = 162.13 × 110.79
  4. Step 4: Simplify right side
    116.94x = 17,962.38
  5. Step 5: Solve for x
    x = 17,962.38/116.94
  6. Step 6: Final answer
    x = 153.60

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.