Finding the Fourth Proportional to 163.68, 225.76 and 124.96
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Solution
The fourth proportional to 163.68, 225.76 and 124.96 is: 172.35
Step by Step Solution
- Step 1: Write the proportion equation
163.68 : 225.76 = 124.96 : x - Step 2: Convert to fraction form
163.68/225.76 = 124.96/x - Step 3: Cross multiply
163.68x = 225.76 × 124.96 - Step 4: Simplify right side
163.68x = 28,210.97 - Step 5: Solve for x
x = 28,210.97/163.68 - Step 6: Final answer
x = 172.35
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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.