Finding the Fourth Proportional to 189,121.20, 260,982.64 and 104,236.44
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Solution
The fourth proportional to 189,121.20, 260,982.64 and 104,236.44 is: 143,843.74
Step by Step Solution
- Step 1: Write the proportion equation
189,121.20 : 260,982.64 = 104,236.44 : x - Step 2: Convert to fraction form
189,121.20/260,982.64 = 104,236.44/x - Step 3: Cross multiply
189,121.20x = 260,982.64 × 104,236.44 - Step 4: Simplify right side
189,121.20x = 27,203,901,295.40 - Step 5: Solve for x
x = 27,203,901,295.40/189,121.20 - Step 6: Final answer
x = 143,843.74
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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.