Finding the Fourth Proportional to 122.44, 183.39 and 83.74
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Solution
The fourth proportional to 122.44, 183.39 and 83.74 is: 125.43
Step by Step Solution
- Step 1: Write the proportion equation
122.44 : 183.39 = 83.74 : x - Step 2: Convert to fraction form
122.44/183.39 = 83.74/x - Step 3: Cross multiply
122.44x = 183.39 × 83.74 - Step 4: Simplify right side
122.44x = 15,357.08 - Step 5: Solve for x
x = 15,357.08/122.44 - Step 6: Final answer
x = 125.43
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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.