Finding the Fourth Proportional to 110,747.80, 166,121.70 and 66,351.70
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Solution
The fourth proportional to 110,747.80, 166,121.70 and 66,351.70 is: 99,527.55
Step by Step Solution
- Step 1: Write the proportion equation
110,747.80 : 166,121.70 = 66,351.70 : x - Step 2: Convert to fraction form
110,747.80/166,121.70 = 66,351.70/x - Step 3: Cross multiply
110,747.80x = 166,121.70 × 66,351.70 - Step 4: Simplify right side
110,747.80x = 11,022,457,201.89 - Step 5: Solve for x
x = 11,022,457,201.89/110,747.80 - Step 6: Final answer
x = 99,527.55
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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.