Finding the Fourth Proportional to 125,157.20, 172,721.28 and 68,568.62
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Solution
The fourth proportional to 125,157.20, 172,721.28 and 68,568.62 is: 94,627.08
Step by Step Solution
- Step 1: Write the proportion equation
125,157.20 : 172,721.28 = 68,568.62 : x - Step 2: Convert to fraction form
125,157.20/172,721.28 = 68,568.62/x - Step 3: Cross multiply
125,157.20x = 172,721.28 × 68,568.62 - Step 4: Simplify right side
125,157.20x = 11,843,259,814.23 - Step 5: Solve for x
x = 11,843,259,814.23/125,157.20 - Step 6: Final answer
x = 94,627.08
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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.