Finding the Fourth Proportional to 172,845.09, 238,571.33 and 112,581.09
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Solution
The fourth proportional to 172,845.09, 238,571.33 and 112,581.09 is: 155,391.28
Step by Step Solution
- Step 1: Write the proportion equation
172,845.09 : 238,571.33 = 112,581.09 : x - Step 2: Convert to fraction form
172,845.09/238,571.33 = 112,581.09/x - Step 3: Cross multiply
172,845.09x = 238,571.33 × 112,581.09 - Step 4: Simplify right side
172,845.09x = 26,858,619,811.24 - Step 5: Solve for x
x = 26,858,619,811.24/172,845.09 - Step 6: Final answer
x = 155,391.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.