Finding the Fourth Proportional to 163.99, 226.20 and 124.75
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Solution
The fourth proportional to 163.99, 226.20 and 124.75 is: 172.07
Step by Step Solution
- Step 1: Write the proportion equation
163.99 : 226.20 = 124.75 : x - Step 2: Convert to fraction form
163.99/226.20 = 124.75/x - Step 3: Cross multiply
163.99x = 226.20 × 124.75 - Step 4: Simplify right side
163.99x = 28,218.45 - Step 5: Solve for x
x = 28,218.45/163.99 - Step 6: Final answer
x = 172.07
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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.