Finding the Fourth Proportional to 126,843.18, 175,045.68 and 69,481.68
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Solution
The fourth proportional to 126,843.18, 175,045.68 and 69,481.68 is: 95,885.86
Step by Step Solution
- Step 1: Write the proportion equation
126,843.18 : 175,045.68 = 69,481.68 : x - Step 2: Convert to fraction form
126,843.18/175,045.68 = 69,481.68/x - Step 3: Cross multiply
126,843.18x = 175,045.68 × 69,481.68 - Step 4: Simplify right side
126,843.18x = 12,162,467,923.14 - Step 5: Solve for x
x = 12,162,467,923.14/126,843.18 - Step 6: Final answer
x = 95,885.86
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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.