Finding the Fourth Proportional to 132.44, 199.02 and 74.75
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Solution
The fourth proportional to 132.44, 199.02 and 74.75 is: 112.33
Step by Step Solution
- Step 1: Write the proportion equation
132.44 : 199.02 = 74.75 : x - Step 2: Convert to fraction form
132.44/199.02 = 74.75/x - Step 3: Cross multiply
132.44x = 199.02 × 74.75 - Step 4: Simplify right side
132.44x = 14,876.75 - Step 5: Solve for x
x = 14,876.75/132.44 - Step 6: Final answer
x = 112.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.