Finding the Fourth Proportional to 134.97, 201.60 and 115.62
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Solution
The fourth proportional to 134.97, 201.60 and 115.62 is: 172.70
Step by Step Solution
- Step 1: Write the proportion equation
134.97 : 201.60 = 115.62 : x - Step 2: Convert to fraction form
134.97/201.60 = 115.62/x - Step 3: Cross multiply
134.97x = 201.60 × 115.62 - Step 4: Simplify right side
134.97x = 23,308.99 - Step 5: Solve for x
x = 23,308.99/134.97 - Step 6: Final answer
x = 172.70
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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.