Finding the Fourth Proportional to 135,714.72, 203,649.84 and 75,793.44
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Solution
The fourth proportional to 135,714.72, 203,649.84 and 75,793.44 is: 113,733.59
Step by Step Solution
- Step 1: Write the proportion equation
135,714.72 : 203,649.84 = 75,793.44 : x - Step 2: Convert to fraction form
135,714.72/203,649.84 = 75,793.44/x - Step 3: Cross multiply
135,714.72x = 203,649.84 × 75,793.44 - Step 4: Simplify right side
135,714.72x = 15,435,321,929.05 - Step 5: Solve for x
x = 15,435,321,929.05/135,714.72 - Step 6: Final answer
x = 113,733.59
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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.