Finding the Fourth Proportional to 122.11, 182.99 and 94.57
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Solution
The fourth proportional to 122.11, 182.99 and 94.57 is: 141.72
Step by Step Solution
- Step 1: Write the proportion equation
122.11 : 182.99 = 94.57 : x - Step 2: Convert to fraction form
122.11/182.99 = 94.57/x - Step 3: Cross multiply
122.11x = 182.99 × 94.57 - Step 4: Simplify right side
122.11x = 17,305.14 - Step 5: Solve for x
x = 17,305.14/122.11 - Step 6: Final answer
x = 141.72
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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.