Finding the Fourth Proportional to 125,222.38, 172,817.82 and 68,644.68
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Solution
The fourth proportional to 125,222.38, 172,817.82 and 68,644.68 is: 94,735.65
Step by Step Solution
- Step 1: Write the proportion equation
125,222.38 : 172,817.82 = 68,644.68 : x - Step 2: Convert to fraction form
125,222.38/172,817.82 = 68,644.68/x - Step 3: Cross multiply
125,222.38x = 172,817.82 × 68,644.68 - Step 4: Simplify right side
125,222.38x = 11,863,023,952.20 - Step 5: Solve for x
x = 11,863,023,952.20/125,222.38 - Step 6: Final answer
x = 94,735.65
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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.