Finding the Fourth Proportional to 127.11, 190.22 and 111.99
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Solution
The fourth proportional to 127.11, 190.22 and 111.99 is: 167.59
Step by Step Solution
- Step 1: Write the proportion equation
127.11 : 190.22 = 111.99 : x - Step 2: Convert to fraction form
127.11/190.22 = 111.99/x - Step 3: Cross multiply
127.11x = 190.22 × 111.99 - Step 4: Simplify right side
127.11x = 21,302.18 - Step 5: Solve for x
x = 21,302.18/127.11 - Step 6: Final answer
x = 167.59
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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.