Finding the Fourth Proportional to 126.21, 174.50 and 110.63
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Solution
The fourth proportional to 126.21, 174.50 and 110.63 is: 152.97
Step by Step Solution
- Step 1: Write the proportion equation
126.21 : 174.50 = 110.63 : x - Step 2: Convert to fraction form
126.21/174.50 = 110.63/x - Step 3: Cross multiply
126.21x = 174.50 × 110.63 - Step 4: Simplify right side
126.21x = 19,305.67 - Step 5: Solve for x
x = 19,305.67/126.21 - Step 6: Final answer
x = 152.97
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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.