Finding the Fourth Proportional to 125,819.15, 188,757.84 and 65,880.19
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Solution
The fourth proportional to 125,819.15, 188,757.84 and 65,880.19 is: 98,835.53
Step by Step Solution
- Step 1: Write the proportion equation
125,819.15 : 188,757.84 = 65,880.19 : x - Step 2: Convert to fraction form
125,819.15/188,757.84 = 65,880.19/x - Step 3: Cross multiply
125,819.15x = 188,757.84 × 65,880.19 - Step 4: Simplify right side
125,819.15x = 12,435,401,584.10 - Step 5: Solve for x
x = 12,435,401,584.10/125,819.15 - Step 6: Final answer
x = 98,835.53
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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.