Finding the Fourth Proportional to 119,286.97, 178,935.93 and 84,382.45
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Solution
The fourth proportional to 119,286.97, 178,935.93 and 84,382.45 is: 126,577.55
Step by Step Solution
- Step 1: Write the proportion equation
119,286.97 : 178,935.93 = 84,382.45 : x - Step 2: Convert to fraction form
119,286.97/178,935.93 = 84,382.45/x - Step 3: Cross multiply
119,286.97x = 178,935.93 × 84,382.45 - Step 4: Simplify right side
119,286.97x = 15,099,052,166.43 - Step 5: Solve for x
x = 15,099,052,166.43/119,286.97 - Step 6: Final answer
x = 126,577.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.