Finding the Fourth Proportional to 122.50, 168.99 and 94.99
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Solution
The fourth proportional to 122.50, 168.99 and 94.99 is: 131.03
Step by Step Solution
- Step 1: Write the proportion equation
122.50 : 168.99 = 94.99 : x - Step 2: Convert to fraction form
122.50/168.99 = 94.99/x - Step 3: Cross multiply
122.50x = 168.99 × 94.99 - Step 4: Simplify right side
122.50x = 16,051.04 - Step 5: Solve for x
x = 16,051.04/122.50 - Step 6: Final answer
x = 131.03
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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.