Finding the Fourth Proportional to 122,497.50, 183,793.79 and 47,670.20
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Solution
The fourth proportional to 122,497.50, 183,793.79 and 47,670.20 is: 71,523.80
Step by Step Solution
- Step 1: Write the proportion equation
122,497.50 : 183,793.79 = 47,670.20 : x - Step 2: Convert to fraction form
122,497.50/183,793.79 = 47,670.20/x - Step 3: Cross multiply
122,497.50x = 183,793.79 × 47,670.20 - Step 4: Simplify right side
122,497.50x = 8,761,486,949.19 - Step 5: Solve for x
x = 8,761,486,949.19/122,497.50 - Step 6: Final answer
x = 71,523.80
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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.