Finding the Fourth Proportional to 122.44, 168.87 and 104.08
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Solution
The fourth proportional to 122.44, 168.87 and 104.08 is: 143.55
Step by Step Solution
- Step 1: Write the proportion equation
122.44 : 168.87 = 104.08 : x - Step 2: Convert to fraction form
122.44/168.87 = 104.08/x - Step 3: Cross multiply
122.44x = 168.87 × 104.08 - Step 4: Simplify right side
122.44x = 17,575.99 - Step 5: Solve for x
x = 17,575.99/122.44 - Step 6: Final answer
x = 143.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.