Finding the Fourth Proportional to 120,555.36, 180,753.26 and 53,903.70
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Solution
The fourth proportional to 120,555.36, 180,753.26 and 53,903.70 is: 80,819.88
Step by Step Solution
- Step 1: Write the proportion equation
120,555.36 : 180,753.26 = 53,903.70 : x - Step 2: Convert to fraction form
120,555.36/180,753.26 = 53,903.70/x - Step 3: Cross multiply
120,555.36x = 180,753.26 × 53,903.70 - Step 4: Simplify right side
120,555.36x = 9,743,269,231.54 - Step 5: Solve for x
x = 9,743,269,231.54/120,555.36 - Step 6: Final answer
x = 80,819.88
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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.