Finding the Third Proportional to 81,102.75 and 177,993.75
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Solution
The third proportional to 81,102.75 and 177,993.75 is: 390,637.49
Step by Step Solution
- Step 1: Write the proportion equation
81,102.75 : 177,993.75 = 177,993.75 : x - Step 2: Convert to fraction form
81,102.75/177,993.75 = 177,993.75/x - Step 3: Cross multiply
81,102.75x = 177,993.75 × 177,993.75 - Step 4: Simplify right side
81,102.75x = 31,681,775,039.06 - Step 5: Solve for x
x = 31,681,775,039.06/81,102.75 - Step 6: Final answer
x = 390,637.49
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.