Finding the Fourth Proportional to 132.75, 199 and 47.19
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Solution
The fourth proportional to 132.75, 199 and 47.19 is: 70.74
Step by Step Solution
- Step 1: Write the proportion equation
132.75 : 199 = 47.19 : x - Step 2: Convert to fraction form
132.75/199 = 47.19/x - Step 3: Cross multiply
132.75x = 199 × 47.19 - Step 4: Simplify right side
132.75x = 9,390.81 - Step 5: Solve for x
x = 9,390.81/132.75 - Step 6: Final answer
x = 70.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.