Finding the Fourth Proportional to 122.53, 168.87 and 94.99
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Solution
The fourth proportional to 122.53, 168.87 and 94.99 is: 130.91
Step by Step Solution
- Step 1: Write the proportion equation
122.53 : 168.87 = 94.99 : x - Step 2: Convert to fraction form
122.53/168.87 = 94.99/x - Step 3: Cross multiply
122.53x = 168.87 × 94.99 - Step 4: Simplify right side
122.53x = 16,040.96 - Step 5: Solve for x
x = 16,040.96/122.53 - Step 6: Final answer
x = 130.91
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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.