Finding the Fourth Proportional to 166,168.62, 229,311.53 and 90,717.12
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Solution
The fourth proportional to 166,168.62, 229,311.53 and 90,717.12 is: 125,188.99
Step by Step Solution
- Step 1: Write the proportion equation
166,168.62 : 229,311.53 = 90,717.12 : x - Step 2: Convert to fraction form
166,168.62/229,311.53 = 90,717.12/x - Step 3: Cross multiply
166,168.62x = 229,311.53 × 90,717.12 - Step 4: Simplify right side
166,168.62x = 20,802,481,130.81 - Step 5: Solve for x
x = 20,802,481,130.81/166,168.62 - Step 6: Final answer
x = 125,188.99
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1.5x scale
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.