Finding the Fourth Proportional to 115,611.92, 173,236.44 and 68,839.28
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Solution
The fourth proportional to 115,611.92, 173,236.44 and 68,839.28 is: 103,150.88
Step by Step Solution
- Step 1: Write the proportion equation
115,611.92 : 173,236.44 = 68,839.28 : x - Step 2: Convert to fraction form
115,611.92/173,236.44 = 68,839.28/x - Step 3: Cross multiply
115,611.92x = 173,236.44 × 68,839.28 - Step 4: Simplify right side
115,611.92x = 11,925,471,799.36 - Step 5: Solve for x
x = 11,925,471,799.36/115,611.92 - Step 6: Final answer
x = 103,150.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.