Finding the Fourth Proportional to 125,418.75, 173,078.15 and 68,829.99
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Solution
The fourth proportional to 125,418.75, 173,078.15 and 68,829.99 is: 94,985.53
Step by Step Solution
- Step 1: Write the proportion equation
125,418.75 : 173,078.15 = 68,829.99 : x - Step 2: Convert to fraction form
125,418.75/173,078.15 = 68,829.99/x - Step 3: Cross multiply
125,418.75x = 173,078.15 × 68,829.99 - Step 4: Simplify right side
125,418.75x = 11,912,966,989.57 - Step 5: Solve for x
x = 11,912,966,989.57/125,418.75 - Step 6: Final answer
x = 94,985.53
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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.