Finding the Fourth Proportional to 163.99, 246.04 and 81.76
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Solution
The fourth proportional to 163.99, 246.04 and 81.76 is: 122.67
Step by Step Solution
- Step 1: Write the proportion equation
163.99 : 246.04 = 81.76 : x - Step 2: Convert to fraction form
163.99/246.04 = 81.76/x - Step 3: Cross multiply
163.99x = 246.04 × 81.76 - Step 4: Simplify right side
163.99x = 20,116.23 - Step 5: Solve for x
x = 20,116.23/163.99 - Step 6: Final answer
x = 122.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.