Finding the Fourth Proportional to 123,768.75, 170,803.94 and 67,179.99
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Solution
The fourth proportional to 123,768.75, 170,803.94 and 67,179.99 is: 92,710.05
Step by Step Solution
- Step 1: Write the proportion equation
123,768.75 : 170,803.94 = 67,179.99 : x - Step 2: Convert to fraction form
123,768.75/170,803.94 = 67,179.99/x - Step 3: Cross multiply
123,768.75x = 170,803.94 × 67,179.99 - Step 4: Simplify right side
123,768.75x = 11,474,606,645.26 - Step 5: Solve for x
x = 11,474,606,645.26/123,768.75 - Step 6: Final answer
x = 92,710.05
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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.