Finding the Third Proportional to 81,879.75 and 122,316.75
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Solution
The third proportional to 81,879.75 and 122,316.75 is: 182,723.90
Step by Step Solution
- Step 1: Write the proportion equation
81,879.75 : 122,316.75 = 122,316.75 : x - Step 2: Convert to fraction form
81,879.75/122,316.75 = 122,316.75/x - Step 3: Cross multiply
81,879.75x = 122,316.75 × 122,316.75 - Step 4: Simplify right side
81,879.75x = 14,961,387,330.56 - Step 5: Solve for x
x = 14,961,387,330.56/81,879.75 - Step 6: Final answer
x = 182,723.90
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.