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Finding the Fourth Proportional to 119.15, 164.60 and 110.51

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Solution

The fourth proportional to 119.15, 164.60 and 110.51 is: 152.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.15 : 164.60 = 110.51 : x
  2. Step 2: Convert to fraction form
    119.15/164.60 = 110.51/x
  3. Step 3: Cross multiply
    119.15x = 164.60 × 110.51
  4. Step 4: Simplify right side
    119.15x = 18,189.39
  5. Step 5: Solve for x
    x = 18,189.39/119.15
  6. Step 6: Final answer
    x = 152.66

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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.