Finding the Fourth Proportional to 120,442.05, 166,202.84 and 66,723.18
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Solution
The fourth proportional to 120,442.05, 166,202.84 and 66,723.18 is: 92,074.00
Step by Step Solution
- Step 1: Write the proportion equation
120,442.05 : 166,202.84 = 66,723.18 : x - Step 2: Convert to fraction form
120,442.05/166,202.84 = 66,723.18/x - Step 3: Cross multiply
120,442.05x = 166,202.84 × 66,723.18 - Step 4: Simplify right side
120,442.05x = 11,089,581,676.22 - Step 5: Solve for x
x = 11,089,581,676.22/120,442.05 - Step 6: Final answer
x = 92,074.00
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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.