Finding the Fourth Proportional to 163.87, 226.11 and 93.91
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Solution
The fourth proportional to 163.87, 226.11 and 93.91 is: 129.58
Step by Step Solution
- Step 1: Write the proportion equation
163.87 : 226.11 = 93.91 : x - Step 2: Convert to fraction form
163.87/226.11 = 93.91/x - Step 3: Cross multiply
163.87x = 226.11 × 93.91 - Step 4: Simplify right side
163.87x = 21,233.99 - Step 5: Solve for x
x = 21,233.99/163.87 - Step 6: Final answer
x = 129.58
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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.