Finding the Fourth Proportional to 120,144.08, 165,806.64 and 69,163.08
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Solution
The fourth proportional to 120,144.08, 165,806.64 and 69,163.08 is: 95,449.55
Step by Step Solution
- Step 1: Write the proportion equation
120,144.08 : 165,806.64 = 69,163.08 : x - Step 2: Convert to fraction form
120,144.08/165,806.64 = 69,163.08/x - Step 3: Cross multiply
120,144.08x = 165,806.64 × 69,163.08 - Step 4: Simplify right side
120,144.08x = 11,467,697,906.85 - Step 5: Solve for x
x = 11,467,697,906.85/120,144.08 - Step 6: Final answer
x = 95,449.55
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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.