Finding the Fourth Proportional to 121.99, 183.80 and 110.44
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Solution
The fourth proportional to 121.99, 183.80 and 110.44 is: 166.39
Step by Step Solution
- Step 1: Write the proportion equation
121.99 : 183.80 = 110.44 : x - Step 2: Convert to fraction form
121.99/183.80 = 110.44/x - Step 3: Cross multiply
121.99x = 183.80 × 110.44 - Step 4: Simplify right side
121.99x = 20,297.95 - Step 5: Solve for x
x = 20,297.95/121.99 - Step 6: Final answer
x = 166.39
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.