Finding the Fourth Proportional to 126,634.96, 189,468.82 and 110,722.49
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Solution
The fourth proportional to 126,634.96, 189,468.82 and 110,722.49 is: 165,660.88
Step by Step Solution
- Step 1: Write the proportion equation
126,634.96 : 189,468.82 = 110,722.49 : x - Step 2: Convert to fraction form
126,634.96/189,468.82 = 110,722.49/x - Step 3: Cross multiply
126,634.96x = 189,468.82 × 110,722.49 - Step 4: Simplify right side
126,634.96x = 20,978,459,527.76 - Step 5: Solve for x
x = 20,978,459,527.76/126,634.96 - Step 6: Final answer
x = 165,660.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.