Finding the Fourth Proportional to 120,113.87, 180,183.11 and 41,217.84
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Solution
The fourth proportional to 120,113.87, 180,183.11 and 41,217.84 is: 61,830.98
Step by Step Solution
- Step 1: Write the proportion equation
120,113.87 : 180,183.11 = 41,217.84 : x - Step 2: Convert to fraction form
120,113.87/180,183.11 = 41,217.84/x - Step 3: Cross multiply
120,113.87x = 180,183.11 × 41,217.84 - Step 4: Simplify right side
120,113.87x = 7,426,758,392.59 - Step 5: Solve for x
x = 7,426,758,392.59/120,113.87 - Step 6: Final answer
x = 61,830.98
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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.