Finding the Fourth Proportional to 125,803.28, 188,649.50 and 66,625.12
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Solution
The fourth proportional to 125,803.28, 188,649.50 and 66,625.12 is: 99,908.33
Step by Step Solution
- Step 1: Write the proportion equation
125,803.28 : 188,649.50 = 66,625.12 : x - Step 2: Convert to fraction form
125,803.28/188,649.50 = 66,625.12/x - Step 3: Cross multiply
125,803.28x = 188,649.50 × 66,625.12 - Step 4: Simplify right side
125,803.28x = 12,568,795,575.44 - Step 5: Solve for x
x = 12,568,795,575.44/125,803.28 - Step 6: Final answer
x = 99,908.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.