Finding the Fourth Proportional to 163.09, 224.97 and 121.66
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Solution
The fourth proportional to 163.09, 224.97 and 121.66 is: 167.82
Step by Step Solution
- Step 1: Write the proportion equation
163.09 : 224.97 = 121.66 : x - Step 2: Convert to fraction form
163.09/224.97 = 121.66/x - Step 3: Cross multiply
163.09x = 224.97 × 121.66 - Step 4: Simplify right side
163.09x = 27,369.85 - Step 5: Solve for x
x = 27,369.85/163.09 - Step 6: Final answer
x = 167.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.