Finding the Fourth Proportional to 189,838.26, 261,982.08 and 104,960.79
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Solution
The fourth proportional to 189,838.26, 261,982.08 and 104,960.79 is: 144,848.81
Step by Step Solution
- Step 1: Write the proportion equation
189,838.26 : 261,982.08 = 104,960.79 : x - Step 2: Convert to fraction form
189,838.26/261,982.08 = 104,960.79/x - Step 3: Cross multiply
189,838.26x = 261,982.08 × 104,960.79 - Step 4: Simplify right side
189,838.26x = 27,497,846,082.64 - Step 5: Solve for x
x = 27,497,846,082.64/189,838.26 - Step 6: Final answer
x = 144,848.81
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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.