Finding the Fourth Proportional to 126.97, 175.19 and 80.26
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Solution
The fourth proportional to 126.97, 175.19 and 80.26 is: 110.74
Step by Step Solution
- Step 1: Write the proportion equation
126.97 : 175.19 = 80.26 : x - Step 2: Convert to fraction form
126.97/175.19 = 80.26/x - Step 3: Cross multiply
126.97x = 175.19 × 80.26 - Step 4: Simplify right side
126.97x = 14,059.91 - Step 5: Solve for x
x = 14,059.91/126.97 - Step 6: Final answer
x = 110.74
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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.