Finding the Fourth Proportional to 146,197.80, 219,296.70 and 72,469.80
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Solution
The fourth proportional to 146,197.80, 219,296.70 and 72,469.80 is: 108,704.70
Step by Step Solution
- Step 1: Write the proportion equation
146,197.80 : 219,296.70 = 72,469.80 : x - Step 2: Convert to fraction form
146,197.80/219,296.70 = 72,469.80/x - Step 3: Cross multiply
146,197.80x = 219,296.70 × 72,469.80 - Step 4: Simplify right side
146,197.80x = 15,892,387,989.66 - Step 5: Solve for x
x = 15,892,387,989.66/146,197.80 - Step 6: Final answer
x = 108,704.70
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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.