Finding the Fourth Proportional to 113,469.80, 170,204.70 and 87,225.80
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Solution
The fourth proportional to 113,469.80, 170,204.70 and 87,225.80 is: 130,838.70
Step by Step Solution
- Step 1: Write the proportion equation
113,469.80 : 170,204.70 = 87,225.80 : x - Step 2: Convert to fraction form
113,469.80/170,204.70 = 87,225.80/x - Step 3: Cross multiply
113,469.80x = 170,204.70 × 87,225.80 - Step 4: Simplify right side
113,469.80x = 14,846,241,121.26 - Step 5: Solve for x
x = 14,846,241,121.26/113,469.80 - Step 6: Final answer
x = 130,838.70
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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.