Finding the Fourth Proportional to 161.92, 242.36 and 112.96
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Solution
The fourth proportional to 161.92, 242.36 and 112.96 is: 169.08
Step by Step Solution
- Step 1: Write the proportion equation
161.92 : 242.36 = 112.96 : x - Step 2: Convert to fraction form
161.92/242.36 = 112.96/x - Step 3: Cross multiply
161.92x = 242.36 × 112.96 - Step 4: Simplify right side
161.92x = 27,376.99 - Step 5: Solve for x
x = 27,376.99/161.92 - Step 6: Final answer
x = 169.08
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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.