Finding the Fourth Proportional to 132.36, 182.28 and 122.08
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Solution
The fourth proportional to 132.36, 182.28 and 122.08 is: 168.12
Step by Step Solution
- Step 1: Write the proportion equation
132.36 : 182.28 = 122.08 : x - Step 2: Convert to fraction form
132.36/182.28 = 122.08/x - Step 3: Cross multiply
132.36x = 182.28 × 122.08 - Step 4: Simplify right side
132.36x = 22,252.74 - Step 5: Solve for x
x = 22,252.74/132.36 - Step 6: Final answer
x = 168.12
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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.