Finding the Fourth Proportional to 113.99, 170.99 and 36.97
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Solution
The fourth proportional to 113.99, 170.99 and 36.97 is: 55.45
Step by Step Solution
- Step 1: Write the proportion equation
113.99 : 170.99 = 36.97 : x - Step 2: Convert to fraction form
113.99/170.99 = 36.97/x - Step 3: Cross multiply
113.99x = 170.99 × 36.97 - Step 4: Simplify right side
113.99x = 6,321.17 - Step 5: Solve for x
x = 6,321.17/113.99 - Step 6: Final answer
x = 55.45
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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.