Finding the Fourth Proportional to 125,229.75, 172,817.07 and 68,639.91
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Solution
The fourth proportional to 125,229.75, 172,817.07 and 68,639.91 is: 94,723.08
Step by Step Solution
- Step 1: Write the proportion equation
125,229.75 : 172,817.07 = 68,639.91 : x - Step 2: Convert to fraction form
125,229.75/172,817.07 = 68,639.91/x - Step 3: Cross multiply
125,229.75x = 172,817.07 × 68,639.91 - Step 4: Simplify right side
125,229.75x = 11,862,148,131.26 - Step 5: Solve for x
x = 11,862,148,131.26/125,229.75 - Step 6: Final answer
x = 94,723.08
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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.