Finding the Fourth Proportional to 120,348.97, 166,086.77 and 66,633.99
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Solution
The fourth proportional to 120,348.97, 166,086.77 and 66,633.99 is: 91,957.78
Step by Step Solution
- Step 1: Write the proportion equation
120,348.97 : 166,086.77 = 66,633.99 : x - Step 2: Convert to fraction form
120,348.97/166,086.77 = 66,633.99/x - Step 3: Cross multiply
120,348.97x = 166,086.77 × 66,633.99 - Step 4: Simplify right side
120,348.97x = 11,067,024,244.66 - Step 5: Solve for x
x = 11,067,024,244.66/120,348.97 - Step 6: Final answer
x = 91,957.78
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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.