Finding the Fourth Proportional to 163.64, 225.76 and 93.70
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Solution
The fourth proportional to 163.64, 225.76 and 93.70 is: 129.27
Step by Step Solution
- Step 1: Write the proportion equation
163.64 : 225.76 = 93.70 : x - Step 2: Convert to fraction form
163.64/225.76 = 93.70/x - Step 3: Cross multiply
163.64x = 225.76 × 93.70 - Step 4: Simplify right side
163.64x = 21,153.71 - Step 5: Solve for x
x = 21,153.71/163.64 - Step 6: Final answer
x = 129.27
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.