Finding the Fourth Proportional to 122.67, 183.51 and 114.99
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Solution
The fourth proportional to 122.67, 183.51 and 114.99 is: 172.02
Step by Step Solution
- Step 1: Write the proportion equation
122.67 : 183.51 = 114.99 : x - Step 2: Convert to fraction form
122.67/183.51 = 114.99/x - Step 3: Cross multiply
122.67x = 183.51 × 114.99 - Step 4: Simplify right side
122.67x = 21,101.81 - Step 5: Solve for x
x = 21,101.81/122.67 - Step 6: Final answer
x = 172.02
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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.