Finding the Fourth Proportional to 129,471.24, 194,129.09 and 50,622.60
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Solution
The fourth proportional to 129,471.24, 194,129.09 and 50,622.60 is: 75,903.49
Step by Step Solution
- Step 1: Write the proportion equation
129,471.24 : 194,129.09 = 50,622.60 : x - Step 2: Convert to fraction form
129,471.24/194,129.09 = 50,622.60/x - Step 3: Cross multiply
129,471.24x = 194,129.09 × 50,622.60 - Step 4: Simplify right side
129,471.24x = 9,827,319,018.32 - Step 5: Solve for x
x = 9,827,319,018.32/129,471.24 - Step 6: Final answer
x = 75,903.49
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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.