Finding the Fourth Proportional to 189,542.20, 261,563.20 and 104,657.44
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Solution
The fourth proportional to 189,542.20, 261,563.20 and 104,657.44 is: 144,424.49
Step by Step Solution
- Step 1: Write the proportion equation
189,542.20 : 261,563.20 = 104,657.44 : x - Step 2: Convert to fraction form
189,542.20/261,563.20 = 104,657.44/x - Step 3: Cross multiply
189,542.20x = 261,563.20 × 104,657.44 - Step 4: Simplify right side
189,542.20x = 27,374,534,910.21 - Step 5: Solve for x
x = 27,374,534,910.21/189,542.20 - Step 6: Final answer
x = 144,424.49
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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.