Finding the Fourth Proportional to 163.74, 225.97 and 93.82
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Solution
The fourth proportional to 163.74, 225.97 and 93.82 is: 129.48
Step by Step Solution
- Step 1: Write the proportion equation
163.74 : 225.97 = 93.82 : x - Step 2: Convert to fraction form
163.74/225.97 = 93.82/x - Step 3: Cross multiply
163.74x = 225.97 × 93.82 - Step 4: Simplify right side
163.74x = 21,201.03 - Step 5: Solve for x
x = 21,201.03/163.74 - Step 6: Final answer
x = 129.48
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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.