Finding the Fourth Proportional to 121,611.26, 167,827.61 and 67,896.90
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Solution
The fourth proportional to 121,611.26, 167,827.61 and 67,896.90 is: 93,699.99
Step by Step Solution
- Step 1: Write the proportion equation
121,611.26 : 167,827.61 = 67,896.90 : x - Step 2: Convert to fraction form
121,611.26/167,827.61 = 67,896.90/x - Step 3: Cross multiply
121,611.26x = 167,827.61 × 67,896.90 - Step 4: Simplify right side
121,611.26x = 11,394,974,453.41 - Step 5: Solve for x
x = 11,394,974,453.41/121,611.26 - Step 6: Final answer
x = 93,699.99
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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.