Finding the Fourth Proportional to 163.14, 225.14 and 93.17
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Solution
The fourth proportional to 163.14, 225.14 and 93.17 is: 128.58
Step by Step Solution
- Step 1: Write the proportion equation
163.14 : 225.14 = 93.17 : x - Step 2: Convert to fraction form
163.14/225.14 = 93.17/x - Step 3: Cross multiply
163.14x = 225.14 × 93.17 - Step 4: Simplify right side
163.14x = 20,976.29 - Step 5: Solve for x
x = 20,976.29/163.14 - Step 6: Final answer
x = 128.58
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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.