Finding the Fourth Proportional to 120,394.76, 166,146.09 and 66,680.62
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Solution
The fourth proportional to 120,394.76, 166,146.09 and 66,680.62 is: 92,019.99
Step by Step Solution
- Step 1: Write the proportion equation
120,394.76 : 166,146.09 = 66,680.62 : x - Step 2: Convert to fraction form
120,394.76/166,146.09 = 66,680.62/x - Step 3: Cross multiply
120,394.76x = 166,146.09 × 66,680.62 - Step 4: Simplify right side
120,394.76x = 11,078,723,626.36 - Step 5: Solve for x
x = 11,078,723,626.36/120,394.76 - Step 6: Final answer
x = 92,019.99
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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.