Finding the Fourth Proportional to 121,375.67, 167,504.09 and 67,660.99
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Solution
The fourth proportional to 121,375.67, 167,504.09 and 67,660.99 is: 93,375.32
Step by Step Solution
- Step 1: Write the proportion equation
121,375.67 : 167,504.09 = 67,660.99 : x - Step 2: Convert to fraction form
121,375.67/167,504.09 = 67,660.99/x - Step 3: Cross multiply
121,375.67x = 167,504.09 × 67,660.99 - Step 4: Simplify right side
121,375.67x = 11,333,491,801.38 - Step 5: Solve for x
x = 11,333,491,801.38/121,375.67 - Step 6: Final answer
x = 93,375.32
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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.