Finding the Fourth Proportional to 123,825.21, 170,877.29 and 67,236.99
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Solution
The fourth proportional to 123,825.21, 170,877.29 and 67,236.99 is: 92,786.23
Step by Step Solution
- Step 1: Write the proportion equation
123,825.21 : 170,877.29 = 67,236.99 : x - Step 2: Convert to fraction form
123,825.21/170,877.29 = 67,236.99/x - Step 3: Cross multiply
123,825.21x = 170,877.29 × 67,236.99 - Step 4: Simplify right side
123,825.21x = 11,489,274,638.96 - Step 5: Solve for x
x = 11,489,274,638.96/123,825.21 - Step 6: Final answer
x = 92,786.23
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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.