Finding the Fourth Proportional to 132.36, 182.26 and 122.68
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Solution
The fourth proportional to 132.36, 182.26 and 122.68 is: 168.93
Step by Step Solution
- Step 1: Write the proportion equation
132.36 : 182.26 = 122.68 : x - Step 2: Convert to fraction form
132.36/182.26 = 122.68/x - Step 3: Cross multiply
132.36x = 182.26 × 122.68 - Step 4: Simplify right side
132.36x = 22,359.66 - Step 5: Solve for x
x = 22,359.66/132.36 - Step 6: Final answer
x = 168.93
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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.