Finding the Third Proportional to 78,642.75 and 171,108.75
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Solution
The third proportional to 78,642.75 and 171,108.75 is: 372,293.75
Step by Step Solution
- Step 1: Write the proportion equation
78,642.75 : 171,108.75 = 171,108.75 : x - Step 2: Convert to fraction form
78,642.75/171,108.75 = 171,108.75/x - Step 3: Cross multiply
78,642.75x = 171,108.75 × 171,108.75 - Step 4: Simplify right side
78,642.75x = 29,278,204,326.56 - Step 5: Solve for x
x = 29,278,204,326.56/78,642.75 - Step 6: Final answer
x = 372,293.75
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.