Finding the Fourth Proportional to 132.99, 183.68 and 91.67
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Solution
The fourth proportional to 132.99, 183.68 and 91.67 is: 126.60
Step by Step Solution
- Step 1: Write the proportion equation
132.99 : 183.68 = 91.67 : x - Step 2: Convert to fraction form
132.99/183.68 = 91.67/x - Step 3: Cross multiply
132.99x = 183.68 × 91.67 - Step 4: Simplify right side
132.99x = 16,836.57 - Step 5: Solve for x
x = 16,836.57/132.99 - Step 6: Final answer
x = 126.60
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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.