Finding the Fourth Proportional to 132.26, 182.46 and 76.99
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Solution
The fourth proportional to 132.26, 182.46 and 76.99 is: 106.21
Step by Step Solution
- Step 1: Write the proportion equation
132.26 : 182.46 = 76.99 : x - Step 2: Convert to fraction form
132.26/182.46 = 76.99/x - Step 3: Cross multiply
132.26x = 182.46 × 76.99 - Step 4: Simplify right side
132.26x = 14,047.60 - Step 5: Solve for x
x = 14,047.60/132.26 - Step 6: Final answer
x = 106.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.