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Finding the Fourth Proportional to 116.15, 161.11 and 110.00

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Solution

The fourth proportional to 116.15, 161.11 and 110.00 is: 152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.15 : 161.11 = 110.00 : x
  2. Step 2: Convert to fraction form
    116.15/161.11 = 110.00/x
  3. Step 3: Cross multiply
    116.15x = 161.11 × 110.00
  4. Step 4: Simplify right side
    116.15x = 17,721.29
  5. Step 5: Solve for x
    x = 17,721.29/116.15
  6. Step 6: Final answer
    x = 152.58

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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.