Finding the Fourth Proportional to 129,944.20, 194,916.30 and 36,465.80
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Solution
The fourth proportional to 129,944.20, 194,916.30 and 36,465.80 is: 54,698.70
Step by Step Solution
- Step 1: Write the proportion equation
129,944.20 : 194,916.30 = 36,465.80 : x - Step 2: Convert to fraction form
129,944.20/194,916.30 = 36,465.80/x - Step 3: Cross multiply
129,944.20x = 194,916.30 × 36,465.80 - Step 4: Simplify right side
129,944.20x = 7,107,778,812.54 - Step 5: Solve for x
x = 7,107,778,812.54/129,944.20 - Step 6: Final answer
x = 54,698.70
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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.