Finding the Fourth Proportional to 129,205.80, 193,808.34 and 35,711.28
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Solution
The fourth proportional to 129,205.80, 193,808.34 and 35,711.28 is: 53,566.82
Step by Step Solution
- Step 1: Write the proportion equation
129,205.80 : 193,808.34 = 35,711.28 : x - Step 2: Convert to fraction form
129,205.80/193,808.34 = 35,711.28/x - Step 3: Cross multiply
129,205.80x = 193,808.34 × 35,711.28 - Step 4: Simplify right side
129,205.80x = 6,921,143,896.08 - Step 5: Solve for x
x = 6,921,143,896.08/129,205.80 - Step 6: Final answer
x = 53,566.82
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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.