Finding the Fourth Proportional to 122.99, 184.55 and 45.99
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Solution
The fourth proportional to 122.99, 184.55 and 45.99 is: 69.01
Step by Step Solution
- Step 1: Write the proportion equation
122.99 : 184.55 = 45.99 : x - Step 2: Convert to fraction form
122.99/184.55 = 45.99/x - Step 3: Cross multiply
122.99x = 184.55 × 45.99 - Step 4: Simplify right side
122.99x = 8,487.22 - Step 5: Solve for x
x = 8,487.22/122.99 - Step 6: Final answer
x = 69.01
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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.