Finding the Third Proportional to 123 and 124
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Solution
The third proportional to 123 and 124 is: 125.01
Step by Step Solution
- Step 1: Write the proportion equation
123 : 124 = 124 : x - Step 2: Convert to fraction form
123/124 = 124/x - Step 3: Cross multiply
123x = 124 × 124 - Step 4: Simplify right side
123x = 15,376 - Step 5: Solve for x
x = 15,376/123 - Step 6: Final answer
x = 125.01
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Why These Related Problems?
These problems maintain the same ratio (1.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.