Finding the Fourth Proportional to 129,701.70, 194,474.70 and 50,721.84
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Solution
The fourth proportional to 129,701.70, 194,474.70 and 50,721.84 is: 76,052.32
Step by Step Solution
- Step 1: Write the proportion equation
129,701.70 : 194,474.70 = 50,721.84 : x - Step 2: Convert to fraction form
129,701.70/194,474.70 = 50,721.84/x - Step 3: Cross multiply
129,701.70x = 194,474.70 × 50,721.84 - Step 4: Simplify right side
129,701.70x = 9,864,114,617.45 - Step 5: Solve for x
x = 9,864,114,617.45/129,701.70 - Step 6: Final answer
x = 76,052.32
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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.