Finding the Third Proportional to 77,859.75 and 107,856.75
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Solution
The third proportional to 77,859.75 and 107,856.75 is: 149,410.68
Step by Step Solution
- Step 1: Write the proportion equation
77,859.75 : 107,856.75 = 107,856.75 : x - Step 2: Convert to fraction form
77,859.75/107,856.75 = 107,856.75/x - Step 3: Cross multiply
77,859.75x = 107,856.75 × 107,856.75 - Step 4: Simplify right side
77,859.75x = 11,633,078,520.56 - Step 5: Solve for x
x = 11,633,078,520.56/77,859.75 - Step 6: Final answer
x = 149,410.68
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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.