Finding the Fourth Proportional to 115.58, 173.75 and 92.99
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Solution
The fourth proportional to 115.58, 173.75 and 92.99 is: 139.79
Step by Step Solution
- Step 1: Write the proportion equation
115.58 : 173.75 = 92.99 : x - Step 2: Convert to fraction form
115.58/173.75 = 92.99/x - Step 3: Cross multiply
115.58x = 173.75 × 92.99 - Step 4: Simplify right side
115.58x = 16,156.98 - Step 5: Solve for x
x = 16,156.98/115.58 - Step 6: Final answer
x = 139.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.