Finding the Fourth Proportional to 109,793.98, 151,457.26 and 66,786.62
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Solution
The fourth proportional to 109,793.98, 151,457.26 and 66,786.62 is: 92,129.99
Step by Step Solution
- Step 1: Write the proportion equation
109,793.98 : 151,457.26 = 66,786.62 : x - Step 2: Convert to fraction form
109,793.98/151,457.26 = 66,786.62/x - Step 3: Cross multiply
109,793.98x = 151,457.26 × 66,786.62 - Step 4: Simplify right side
109,793.98x = 10,115,318,469.86 - Step 5: Solve for x
x = 10,115,318,469.86/109,793.98 - Step 6: Final answer
x = 92,129.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.