Finding the Fourth Proportional to 113.97, 170.97 and 36.94
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Solution
The fourth proportional to 113.97, 170.97 and 36.94 is: 55.41
Step by Step Solution
- Step 1: Write the proportion equation
113.97 : 170.97 = 36.94 : x - Step 2: Convert to fraction form
113.97/170.97 = 36.94/x - Step 3: Cross multiply
113.97x = 170.97 × 36.94 - Step 4: Simplify right side
113.97x = 6,315.63 - Step 5: Solve for x
x = 6,315.63/113.97 - Step 6: Final answer
x = 55.41
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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.