Finding the Third Proportional to 76,531.50 and 115,089.19
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Solution
The third proportional to 76,531.50 and 115,089.19 is: 173,072.80
Step by Step Solution
- Step 1: Write the proportion equation
76,531.50 : 115,089.19 = 115,089.19 : x - Step 2: Convert to fraction form
76,531.50/115,089.19 = 115,089.19/x - Step 3: Cross multiply
76,531.50x = 115,089.19 × 115,089.19 - Step 4: Simplify right side
76,531.50x = 13,245,521,079.41 - Step 5: Solve for x
x = 13,245,521,079.41/76,531.50 - Step 6: Final answer
x = 173,072.80
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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.