Finding the Fourth Proportional to 125,689.92, 173,453.09 and 68,329.23
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Solution
The fourth proportional to 125,689.92, 173,453.09 and 68,329.23 is: 94,294.88
Step by Step Solution
- Step 1: Write the proportion equation
125,689.92 : 173,453.09 = 68,329.23 : x - Step 2: Convert to fraction form
125,689.92/173,453.09 = 68,329.23/x - Step 3: Cross multiply
125,689.92x = 173,453.09 × 68,329.23 - Step 4: Simplify right side
125,689.92x = 11,851,915,739.17 - Step 5: Solve for x
x = 11,851,915,739.17/125,689.92 - Step 6: Final answer
x = 94,294.88
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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.