Finding the Fourth Proportional to 118,571.13, 163,687.91 and 91,652.85
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Solution
The fourth proportional to 118,571.13, 163,687.91 and 91,652.85 is: 126,527.12
Step by Step Solution
- Step 1: Write the proportion equation
118,571.13 : 163,687.91 = 91,652.85 : x - Step 2: Convert to fraction form
118,571.13/163,687.91 = 91,652.85/x - Step 3: Cross multiply
118,571.13x = 163,687.91 × 91,652.85 - Step 4: Simplify right side
118,571.13x = 15,002,463,003.78 - Step 5: Solve for x
x = 15,002,463,003.78/118,571.13 - Step 6: Final answer
x = 126,527.12
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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.