Finding the Fourth Proportional to 129,145.24, 193,729.02 and 35,650.99
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Solution
The fourth proportional to 129,145.24, 193,729.02 and 35,650.99 is: 53,479.57
Step by Step Solution
- Step 1: Write the proportion equation
129,145.24 : 193,729.02 = 35,650.99 : x - Step 2: Convert to fraction form
129,145.24/193,729.02 = 35,650.99/x - Step 3: Cross multiply
129,145.24x = 193,729.02 × 35,650.99 - Step 4: Simplify right side
129,145.24x = 6,906,631,354.73 - Step 5: Solve for x
x = 6,906,631,354.73/129,145.24 - Step 6: Final answer
x = 53,479.57
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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.