Finding the Fourth Proportional to 120,698.21, 166,524.99 and 69,704.20
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Solution
The fourth proportional to 120,698.21, 166,524.99 and 69,704.20 is: 96,169.54
Step by Step Solution
- Step 1: Write the proportion equation
120,698.21 : 166,524.99 = 69,704.20 : x - Step 2: Convert to fraction form
120,698.21/166,524.99 = 69,704.20/x - Step 3: Cross multiply
120,698.21x = 166,524.99 × 69,704.20 - Step 4: Simplify right side
120,698.21x = 11,607,491,207.96 - Step 5: Solve for x
x = 11,607,491,207.96/120,698.21 - Step 6: Final answer
x = 96,169.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.