Finding the Third Proportional to 78,160.50 and 121,101.75
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Solution
The third proportional to 78,160.50 and 121,101.75 is: 187,634.85
Step by Step Solution
- Step 1: Write the proportion equation
78,160.50 : 121,101.75 = 121,101.75 : x - Step 2: Convert to fraction form
78,160.50/121,101.75 = 121,101.75/x - Step 3: Cross multiply
78,160.50x = 121,101.75 × 121,101.75 - Step 4: Simplify right side
78,160.50x = 14,665,633,853.06 - Step 5: Solve for x
x = 14,665,633,853.06/78,160.50 - Step 6: Final answer
x = 187,634.85
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.