Finding the Fourth Proportional to 125,318.08, 172,939.20 and 68,729.92
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Solution
The fourth proportional to 125,318.08, 172,939.20 and 68,729.92 is: 94,847.43
Step by Step Solution
- Step 1: Write the proportion equation
125,318.08 : 172,939.20 = 68,729.92 : x - Step 2: Convert to fraction form
125,318.08/172,939.20 = 68,729.92/x - Step 3: Cross multiply
125,318.08x = 172,939.20 × 68,729.92 - Step 4: Simplify right side
125,318.08x = 11,886,097,380.86 - Step 5: Solve for x
x = 11,886,097,380.86/125,318.08 - Step 6: Final answer
x = 94,847.43
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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.