Finding the Fourth Proportional to 125,990.97, 173,817.68 and 87,740.34
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Solution
The fourth proportional to 125,990.97, 173,817.68 and 87,740.34 is: 121,046.94
Step by Step Solution
- Step 1: Write the proportion equation
125,990.97 : 173,817.68 = 87,740.34 : x - Step 2: Convert to fraction form
125,990.97/173,817.68 = 87,740.34/x - Step 3: Cross multiply
125,990.97x = 173,817.68 × 87,740.34 - Step 4: Simplify right side
125,990.97x = 15,250,821,902.51 - Step 5: Solve for x
x = 15,250,821,902.51/125,990.97 - Step 6: Final answer
x = 121,046.94
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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.