Finding the Fourth Proportional to 120,546.14, 166,489.84 and 82,239.92
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Solution
The fourth proportional to 120,546.14, 166,489.84 and 82,239.92 is: 113,583.99
Step by Step Solution
- Step 1: Write the proportion equation
120,546.14 : 166,489.84 = 82,239.92 : x - Step 2: Convert to fraction form
120,546.14/166,489.84 = 82,239.92/x - Step 3: Cross multiply
120,546.14x = 166,489.84 × 82,239.92 - Step 4: Simplify right side
120,546.14x = 13,692,111,122.41 - Step 5: Solve for x
x = 13,692,111,122.41/120,546.14 - Step 6: Final answer
x = 113,583.99
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1.5x scale
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.