Finding the Third Proportional to 128,071.13 and 192,520.13
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Solution
The third proportional to 128,071.13 and 192,520.13 is: 289,401.68
Step by Step Solution
- Step 1: Write the proportion equation
128,071.13 : 192,520.13 = 192,520.13 : x - Step 2: Convert to fraction form
128,071.13/192,520.13 = 192,520.13/x - Step 3: Cross multiply
128,071.13x = 192,520.13 × 192,520.13 - Step 4: Simplify right side
128,071.13x = 37,063,998,530.02 - Step 5: Solve for x
x = 37,063,998,530.02/128,071.13 - Step 6: Final answer
x = 289,401.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.