Finding the Fourth Proportional to 94.19, 141.11 and 84.68
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Solution
The fourth proportional to 94.19, 141.11 and 84.68 is: 126.87
Step by Step Solution
- Step 1: Write the proportion equation
94.19 : 141.11 = 84.68 : x - Step 2: Convert to fraction form
94.19/141.11 = 84.68/x - Step 3: Cross multiply
94.19x = 141.11 × 84.68 - Step 4: Simplify right side
94.19x = 11,949.44 - Step 5: Solve for x
x = 11,949.44/94.19 - Step 6: Final answer
x = 126.87
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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.