Finding the Fourth Proportional to 125,851.92, 173,673.60 and 72,135.60
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Solution
The fourth proportional to 125,851.92, 173,673.60 and 72,135.60 is: 99,545.95
Step by Step Solution
- Step 1: Write the proportion equation
125,851.92 : 173,673.60 = 72,135.60 : x - Step 2: Convert to fraction form
125,851.92/173,673.60 = 72,135.60/x - Step 3: Cross multiply
125,851.92x = 173,673.60 × 72,135.60 - Step 4: Simplify right side
125,851.92x = 12,528,049,340.16 - Step 5: Solve for x
x = 12,528,049,340.16/125,851.92 - Step 6: Final answer
x = 99,545.95
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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.