Finding the Fourth Proportional to 163.99, 245.92 and 67.75
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Solution
The fourth proportional to 163.99, 245.92 and 67.75 is: 101.60
Step by Step Solution
- Step 1: Write the proportion equation
163.99 : 245.92 = 67.75 : x - Step 2: Convert to fraction form
163.99/245.92 = 67.75/x - Step 3: Cross multiply
163.99x = 245.92 × 67.75 - Step 4: Simplify right side
163.99x = 16,661.08 - Step 5: Solve for x
x = 16,661.08/163.99 - Step 6: Final answer
x = 101.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.