Finding the Fourth Proportional to 115.05, 172.97 and 63.79
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Solution
The fourth proportional to 115.05, 172.97 and 63.79 is: 95.90
Step by Step Solution
- Step 1: Write the proportion equation
115.05 : 172.97 = 63.79 : x - Step 2: Convert to fraction form
115.05/172.97 = 63.79/x - Step 3: Cross multiply
115.05x = 172.97 × 63.79 - Step 4: Simplify right side
115.05x = 11,033.24 - Step 5: Solve for x
x = 11,033.24/115.05 - Step 6: Final answer
x = 95.90
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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.