Finding the Fourth Proportional to 163.12, 225.05 and 97.63
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Solution
The fourth proportional to 163.12, 225.05 and 97.63 is: 134.69
Step by Step Solution
- Step 1: Write the proportion equation
163.12 : 225.05 = 97.63 : x - Step 2: Convert to fraction form
163.12/225.05 = 97.63/x - Step 3: Cross multiply
163.12x = 225.05 × 97.63 - Step 4: Simplify right side
163.12x = 21,971.14 - Step 5: Solve for x
x = 21,971.14/163.12 - Step 6: Final answer
x = 134.69
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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.