Finding the Fourth Proportional to 122.91, 183.97 and 77.29
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Solution
The fourth proportional to 122.91, 183.97 and 77.29 is: 115.68
Step by Step Solution
- Step 1: Write the proportion equation
122.91 : 183.97 = 77.29 : x - Step 2: Convert to fraction form
122.91/183.97 = 77.29/x - Step 3: Cross multiply
122.91x = 183.97 × 77.29 - Step 4: Simplify right side
122.91x = 14,218.65 - Step 5: Solve for x
x = 14,218.65/122.91 - Step 6: Final answer
x = 115.68
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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.