Finding the Fourth Proportional to 120,286.08, 180,445.86 and 50,149.26
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Solution
The fourth proportional to 120,286.08, 180,445.86 and 50,149.26 is: 75,230.87
Step by Step Solution
- Step 1: Write the proportion equation
120,286.08 : 180,445.86 = 50,149.26 : x - Step 2: Convert to fraction form
120,286.08/180,445.86 = 50,149.26/x - Step 3: Cross multiply
120,286.08x = 180,445.86 × 50,149.26 - Step 4: Simplify right side
120,286.08x = 9,049,226,349.06 - Step 5: Solve for x
x = 9,049,226,349.06/120,286.08 - Step 6: Final answer
x = 75,230.87
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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.