Finding the Fourth Proportional to 125,679.18, 188,608.73 and 45,716.99
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Solution
The fourth proportional to 125,679.18, 188,608.73 and 45,716.99 is: 68,608.21
Step by Step Solution
- Step 1: Write the proportion equation
125,679.18 : 188,608.73 = 45,716.99 : x - Step 2: Convert to fraction form
125,679.18/188,608.73 = 45,716.99/x - Step 3: Cross multiply
125,679.18x = 188,608.73 × 45,716.99 - Step 4: Simplify right side
125,679.18x = 8,622,623,441.20 - Step 5: Solve for x
x = 8,622,623,441.20/125,679.18 - Step 6: Final answer
x = 68,608.21
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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.