Finding the Fourth Proportional to 189,840.36, 261,982.98 and 104,957.76
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Solution
The fourth proportional to 189,840.36, 261,982.98 and 104,957.76 is: 144,843.52
Step by Step Solution
- Step 1: Write the proportion equation
189,840.36 : 261,982.98 = 104,957.76 : x - Step 2: Convert to fraction form
189,840.36/261,982.98 = 104,957.76/x - Step 3: Cross multiply
189,840.36x = 261,982.98 × 104,957.76 - Step 4: Simplify right side
189,840.36x = 27,497,146,738.92 - Step 5: Solve for x
x = 27,497,146,738.92/189,840.36 - Step 6: Final answer
x = 144,843.52
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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.