Finding the Fourth Proportional to 132.62, 182.96 and 122.09
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Solution
The fourth proportional to 132.62, 182.96 and 122.09 is: 168.43
Step by Step Solution
- Step 1: Write the proportion equation
132.62 : 182.96 = 122.09 : x - Step 2: Convert to fraction form
132.62/182.96 = 122.09/x - Step 3: Cross multiply
132.62x = 182.96 × 122.09 - Step 4: Simplify right side
132.62x = 22,336.06 - Step 5: Solve for x
x = 22,336.06/132.62 - Step 6: Final answer
x = 168.43
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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.