Finding the Fourth Proportional to 126,891.48, 175,299.84 and 83,386.92
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Solution
The fourth proportional to 126,891.48, 175,299.84 and 83,386.92 is: 115,198.54
Step by Step Solution
- Step 1: Write the proportion equation
126,891.48 : 175,299.84 = 83,386.92 : x - Step 2: Convert to fraction form
126,891.48/175,299.84 = 83,386.92/x - Step 3: Cross multiply
126,891.48x = 175,299.84 × 83,386.92 - Step 4: Simplify right side
126,891.48x = 14,617,713,734.09 - Step 5: Solve for x
x = 14,617,713,734.09/126,891.48 - Step 6: Final answer
x = 115,198.54
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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.