Finding the Third Proportional to 76,621.50 and 115,036.88
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Solution
The third proportional to 76,621.50 and 115,036.88 is: 172,712.39
Step by Step Solution
- Step 1: Write the proportion equation
76,621.50 : 115,036.88 = 115,036.88 : x - Step 2: Convert to fraction form
76,621.50/115,036.88 = 115,036.88/x - Step 3: Cross multiply
76,621.50x = 115,036.88 × 115,036.88 - Step 4: Simplify right side
76,621.50x = 13,233,482,609.77 - Step 5: Solve for x
x = 13,233,482,609.77/76,621.50 - Step 6: Final answer
x = 172,712.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.