Finding the Fourth Proportional to 189,634.91, 261,704.11 and 109,062.49
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Solution
The fourth proportional to 189,634.91, 261,704.11 and 109,062.49 is: 150,510.80
Step by Step Solution
- Step 1: Write the proportion equation
189,634.91 : 261,704.11 = 109,062.49 : x - Step 2: Convert to fraction form
189,634.91/261,704.11 = 109,062.49/x - Step 3: Cross multiply
189,634.91x = 261,704.11 × 109,062.49 - Step 4: Simplify right side
189,634.91x = 28,542,101,879.83 - Step 5: Solve for x
x = 28,542,101,879.83/189,634.91 - Step 6: Final answer
x = 150,510.80
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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.