Finding the Fourth Proportional to 115,540.23, 159,360.21 and 73,057.75
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Solution
The fourth proportional to 115,540.23, 159,360.21 and 73,057.75 is: 100,765.75
Step by Step Solution
- Step 1: Write the proportion equation
115,540.23 : 159,360.21 = 73,057.75 : x - Step 2: Convert to fraction form
115,540.23/159,360.21 = 73,057.75/x - Step 3: Cross multiply
115,540.23x = 159,360.21 × 73,057.75 - Step 4: Simplify right side
115,540.23x = 11,642,498,382.13 - Step 5: Solve for x
x = 11,642,498,382.13/115,540.23 - Step 6: Final answer
x = 100,765.75
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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.