Finding the Fourth Proportional to 100,990.97, 151,512.32 and 37,811.99
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Solution
The fourth proportional to 100,990.97, 151,512.32 and 37,811.99 is: 56,727.66
Step by Step Solution
- Step 1: Write the proportion equation
100,990.97 : 151,512.32 = 37,811.99 : x - Step 2: Convert to fraction form
100,990.97/151,512.32 = 37,811.99/x - Step 3: Cross multiply
100,990.97x = 151,512.32 × 37,811.99 - Step 4: Simplify right side
100,990.97x = 5,728,981,382.10 - Step 5: Solve for x
x = 5,728,981,382.10/100,990.97 - Step 6: Final answer
x = 56,727.66
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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.