Finding the Fourth Proportional to 188,405.47, 259,821.03 and 123,760.99
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Solution
The fourth proportional to 188,405.47, 259,821.03 and 123,760.99 is: 170,672.90
Step by Step Solution
- Step 1: Write the proportion equation
188,405.47 : 259,821.03 = 123,760.99 : x - Step 2: Convert to fraction form
188,405.47/259,821.03 = 123,760.99/x - Step 3: Cross multiply
188,405.47x = 259,821.03 × 123,760.99 - Step 4: Simplify right side
188,405.47x = 32,155,707,895.62 - Step 5: Solve for x
x = 32,155,707,895.62/188,405.47 - Step 6: Final answer
x = 170,672.90
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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.