Finding the Third Proportional to 72,821 and 109,900
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Solution
The third proportional to 72,821 and 109,900 is: 165,858.89
Step by Step Solution
- Step 1: Write the proportion equation
72,821 : 109,900 = 109,900 : x - Step 2: Convert to fraction form
72,821/109,900 = 109,900/x - Step 3: Cross multiply
72,821x = 109,900 × 109,900 - Step 4: Simplify right side
72,821x = 12,078,010,000 - Step 5: Solve for x
x = 12,078,010,000/72,821 - Step 6: Final answer
x = 165,858.89
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.