Finding the Fourth Proportional to 163.20, 225.14 and 97.74
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Solution
The fourth proportional to 163.20, 225.14 and 97.74 is: 134.84
Step by Step Solution
- Step 1: Write the proportion equation
163.20 : 225.14 = 97.74 : x - Step 2: Convert to fraction form
163.20/225.14 = 97.74/x - Step 3: Cross multiply
163.20x = 225.14 × 97.74 - Step 4: Simplify right side
163.20x = 22,005.18 - Step 5: Solve for x
x = 22,005.18/163.20 - Step 6: Final answer
x = 134.84
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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.