Finding the Fourth Proportional to 115,489.87, 159,360.26 and 64,496.09
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Solution
The fourth proportional to 115,489.87, 159,360.26 and 64,496.09 is: 88,995.81
Step by Step Solution
- Step 1: Write the proportion equation
115,489.87 : 159,360.26 = 64,496.09 : x - Step 2: Convert to fraction form
115,489.87/159,360.26 = 64,496.09/x - Step 3: Cross multiply
115,489.87x = 159,360.26 × 64,496.09 - Step 4: Simplify right side
115,489.87x = 10,278,114,231.02 - Step 5: Solve for x
x = 10,278,114,231.02/115,489.87 - Step 6: Final answer
x = 88,995.81
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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.