Finding the Fourth Proportional to 159,578.28, 239,163.90 and 84,734.28
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Solution
The fourth proportional to 159,578.28, 239,163.90 and 84,734.28 is: 126,993.35
Step by Step Solution
- Step 1: Write the proportion equation
159,578.28 : 239,163.90 = 84,734.28 : x - Step 2: Convert to fraction form
159,578.28/239,163.90 = 84,734.28/x - Step 3: Cross multiply
159,578.28x = 239,163.90 × 84,734.28 - Step 4: Simplify right side
159,578.28x = 20,265,380,868.49 - Step 5: Solve for x
x = 20,265,380,868.49/159,578.28 - Step 6: Final answer
x = 126,993.35
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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.