Finding the Fourth Proportional to 126.97, 189.95 and 110.06
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Solution
The fourth proportional to 126.97, 189.95 and 110.06 is: 164.65
Step by Step Solution
- Step 1: Write the proportion equation
126.97 : 189.95 = 110.06 : x - Step 2: Convert to fraction form
126.97/189.95 = 110.06/x - Step 3: Cross multiply
126.97x = 189.95 × 110.06 - Step 4: Simplify right side
126.97x = 20,905.11 - Step 5: Solve for x
x = 20,905.11/126.97 - Step 6: Final answer
x = 164.65
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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.