Finding the Fourth Proportional to 123,199.92, 169,977.08 and 75,403.44
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Solution
The fourth proportional to 123,199.92, 169,977.08 and 75,403.44 is: 104,032.99
Step by Step Solution
- Step 1: Write the proportion equation
123,199.92 : 169,977.08 = 75,403.44 : x - Step 2: Convert to fraction form
123,199.92/169,977.08 = 75,403.44/x - Step 3: Cross multiply
123,199.92x = 169,977.08 × 75,403.44 - Step 4: Simplify right side
123,199.92x = 12,816,856,553.16 - Step 5: Solve for x
x = 12,816,856,553.16/123,199.92 - Step 6: Final answer
x = 104,032.99
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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.