Finding the Fourth Proportional to 126,839.70, 190,261.44 and 60,286.68
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Solution
The fourth proportional to 126,839.70, 190,261.44 and 60,286.68 is: 90,430.92
Step by Step Solution
- Step 1: Write the proportion equation
126,839.70 : 190,261.44 = 60,286.68 : x - Step 2: Convert to fraction form
126,839.70/190,261.44 = 60,286.68/x - Step 3: Cross multiply
126,839.70x = 190,261.44 × 60,286.68 - Step 4: Simplify right side
126,839.70x = 11,470,230,549.62 - Step 5: Solve for x
x = 11,470,230,549.62/126,839.70 - Step 6: Final answer
x = 90,430.92
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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.