Finding the Fourth Proportional to 120,604.50, 166,446.36 and 66,899.99
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Solution
The fourth proportional to 120,604.50, 166,446.36 and 66,899.99 is: 92,328.73
Step by Step Solution
- Step 1: Write the proportion equation
120,604.50 : 166,446.36 = 66,899.99 : x - Step 2: Convert to fraction form
120,604.50/166,446.36 = 66,899.99/x - Step 3: Cross multiply
120,604.50x = 166,446.36 × 66,899.99 - Step 4: Simplify right side
120,604.50x = 11,135,259,819.54 - Step 5: Solve for x
x = 11,135,259,819.54/120,604.50 - Step 6: Final answer
x = 92,328.73
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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.