Finding the Fourth Proportional to 163.93, 226.20 and 93.99
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Solution
The fourth proportional to 163.93, 226.20 and 93.99 is: 129.69
Step by Step Solution
- Step 1: Write the proportion equation
163.93 : 226.20 = 93.99 : x - Step 2: Convert to fraction form
163.93/226.20 = 93.99/x - Step 3: Cross multiply
163.93x = 226.20 × 93.99 - Step 4: Simplify right side
163.93x = 21,260.54 - Step 5: Solve for x
x = 21,260.54/163.93 - Step 6: Final answer
x = 129.69
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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.