Finding the Fourth Proportional to 122.92, 184.08 and 112.68
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Solution
The fourth proportional to 122.92, 184.08 and 112.68 is: 168.74
Step by Step Solution
- Step 1: Write the proportion equation
122.92 : 184.08 = 112.68 : x - Step 2: Convert to fraction form
122.92/184.08 = 112.68/x - Step 3: Cross multiply
122.92x = 184.08 × 112.68 - Step 4: Simplify right side
122.92x = 20,742.13 - Step 5: Solve for x
x = 20,742.13/122.92 - Step 6: Final answer
x = 168.74
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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.