Finding the Fourth Proportional to 126,234.21, 189,170.88 and 92,691.09
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Solution
The fourth proportional to 126,234.21, 189,170.88 and 92,691.09 is: 138,904.15
Step by Step Solution
- Step 1: Write the proportion equation
126,234.21 : 189,170.88 = 92,691.09 : x - Step 2: Convert to fraction form
126,234.21/189,170.88 = 92,691.09/x - Step 3: Cross multiply
126,234.21x = 189,170.88 × 92,691.09 - Step 4: Simplify right side
126,234.21x = 17,534,455,063.46 - Step 5: Solve for x
x = 17,534,455,063.46/126,234.21 - Step 6: Final answer
x = 138,904.15
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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.