Finding the Fourth Proportional to 132.61, 182.99 and 80.18
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Solution
The fourth proportional to 132.61, 182.99 and 80.18 is: 110.64
Step by Step Solution
- Step 1: Write the proportion equation
132.61 : 182.99 = 80.18 : x - Step 2: Convert to fraction form
132.61/182.99 = 80.18/x - Step 3: Cross multiply
132.61x = 182.99 × 80.18 - Step 4: Simplify right side
132.61x = 14,672.14 - Step 5: Solve for x
x = 14,672.14/132.61 - Step 6: Final answer
x = 110.64
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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.