Finding the Fourth Proportional to 120,265.43, 165,954.29 and 66,542.99
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Solution
The fourth proportional to 120,265.43, 165,954.29 and 66,542.99 is: 91,822.68
Step by Step Solution
- Step 1: Write the proportion equation
120,265.43 : 165,954.29 = 66,542.99 : x - Step 2: Convert to fraction form
120,265.43/165,954.29 = 66,542.99/x - Step 3: Cross multiply
120,265.43x = 165,954.29 × 66,542.99 - Step 4: Simplify right side
120,265.43x = 11,043,093,497.44 - Step 5: Solve for x
x = 11,043,093,497.44/120,265.43 - Step 6: Final answer
x = 91,822.68
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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.