Finding the Fourth Proportional to 115.96, 173.06 and 112.99
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Solution
The fourth proportional to 115.96, 173.06 and 112.99 is: 168.63
Step by Step Solution
- Step 1: Write the proportion equation
115.96 : 173.06 = 112.99 : x - Step 2: Convert to fraction form
115.96/173.06 = 112.99/x - Step 3: Cross multiply
115.96x = 173.06 × 112.99 - Step 4: Simplify right side
115.96x = 19,554.05 - Step 5: Solve for x
x = 19,554.05/115.96 - Step 6: Final answer
x = 168.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.