Finding the Fourth Proportional to 129,195.35, 193,793.03 and 40,455.80
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Solution
The fourth proportional to 129,195.35, 193,793.03 and 40,455.80 is: 60,683.70
Step by Step Solution
- Step 1: Write the proportion equation
129,195.35 : 193,793.03 = 40,455.80 : x - Step 2: Convert to fraction form
129,195.35/193,793.03 = 40,455.80/x - Step 3: Cross multiply
129,195.35x = 193,793.03 × 40,455.80 - Step 4: Simplify right side
129,195.35x = 7,840,052,063.07 - Step 5: Solve for x
x = 7,840,052,063.07/129,195.35 - Step 6: Final answer
x = 60,683.70
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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.