Finding the Fourth Proportional to 189,694.26, 261,783.36 and 104,816.79
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Solution
The fourth proportional to 189,694.26, 261,783.36 and 104,816.79 is: 144,650.09
Step by Step Solution
- Step 1: Write the proportion equation
189,694.26 : 261,783.36 = 104,816.79 : x - Step 2: Convert to fraction form
189,694.26/261,783.36 = 104,816.79/x - Step 3: Cross multiply
189,694.26x = 261,783.36 × 104,816.79 - Step 4: Simplify right side
189,694.26x = 27,439,291,470.61 - Step 5: Solve for x
x = 27,439,291,470.61/189,694.26 - Step 6: Final answer
x = 144,650.09
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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.