Finding the Fourth Proportional to 125,827.44, 173,649.05 and 72,121.40
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Solution
The fourth proportional to 125,827.44, 173,649.05 and 72,121.40 is: 99,531.65
Step by Step Solution
- Step 1: Write the proportion equation
125,827.44 : 173,649.05 = 72,121.40 : x - Step 2: Convert to fraction form
125,827.44/173,649.05 = 72,121.40/x - Step 3: Cross multiply
125,827.44x = 173,649.05 × 72,121.40 - Step 4: Simplify right side
125,827.44x = 12,523,812,594.67 - Step 5: Solve for x
x = 12,523,812,594.67/125,827.44 - Step 6: Final answer
x = 99,531.65
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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.