Finding the Fourth Proportional to 161.99, 243.11 and 107.92
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Solution
The fourth proportional to 161.99, 243.11 and 107.92 is: 161.97
Step by Step Solution
- Step 1: Write the proportion equation
161.99 : 243.11 = 107.92 : x - Step 2: Convert to fraction form
161.99/243.11 = 107.92/x - Step 3: Cross multiply
161.99x = 243.11 × 107.92 - Step 4: Simplify right side
161.99x = 26,236.09 - Step 5: Solve for x
x = 26,236.09/161.99 - Step 6: Final answer
x = 161.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.