Finding the Fourth Proportional to 129,140.70, 193,705.67 and 44,919.93
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Solution
The fourth proportional to 129,140.70, 193,705.67 and 44,919.93 is: 67,378.02
Step by Step Solution
- Step 1: Write the proportion equation
129,140.70 : 193,705.67 = 44,919.93 : x - Step 2: Convert to fraction form
129,140.70/193,705.67 = 44,919.93/x - Step 3: Cross multiply
129,140.70x = 193,705.67 × 44,919.93 - Step 4: Simplify right side
129,140.70x = 8,701,244,912.40 - Step 5: Solve for x
x = 8,701,244,912.40/129,140.70 - Step 6: Final answer
x = 67,378.02
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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.