Finding the Fourth Proportional to 120,163.46, 165,826.65 and 66,452.09
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Solution
The fourth proportional to 120,163.46, 165,826.65 and 66,452.09 is: 91,704.48
Step by Step Solution
- Step 1: Write the proportion equation
120,163.46 : 165,826.65 = 66,452.09 : x - Step 2: Convert to fraction form
120,163.46/165,826.65 = 66,452.09/x - Step 3: Cross multiply
120,163.46x = 165,826.65 × 66,452.09 - Step 4: Simplify right side
120,163.46x = 11,019,526,641.07 - Step 5: Solve for x
x = 11,019,526,641.07/120,163.46 - Step 6: Final answer
x = 91,704.48
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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.