Finding the Fourth Proportional to 125.24, 172.97 and 97.94
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Solution
The fourth proportional to 125.24, 172.97 and 97.94 is: 135.26
Step by Step Solution
- Step 1: Write the proportion equation
125.24 : 172.97 = 97.94 : x - Step 2: Convert to fraction form
125.24/172.97 = 97.94/x - Step 3: Cross multiply
125.24x = 172.97 × 97.94 - Step 4: Simplify right side
125.24x = 16,939.33 - Step 5: Solve for x
x = 16,939.33/125.24 - Step 6: Final answer
x = 135.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.