Finding the Fourth Proportional to 138,571.09, 207,864.06 and 43,794.07
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Solution
The fourth proportional to 138,571.09, 207,864.06 and 43,794.07 is: 65,693.45
Step by Step Solution
- Step 1: Write the proportion equation
138,571.09 : 207,864.06 = 43,794.07 : x - Step 2: Convert to fraction form
138,571.09/207,864.06 = 43,794.07/x - Step 3: Cross multiply
138,571.09x = 207,864.06 × 43,794.07 - Step 4: Simplify right side
138,571.09x = 9,103,212,694.99 - Step 5: Solve for x
x = 9,103,212,694.99/138,571.09 - Step 6: Final answer
x = 65,693.45
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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.