Finding the Fourth Proportional to 115,189.26, 172,861.74 and 40,310.07
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Solution
The fourth proportional to 115,189.26, 172,861.74 and 40,310.07 is: 60,492.35
Step by Step Solution
- Step 1: Write the proportion equation
115,189.26 : 172,861.74 = 40,310.07 : x - Step 2: Convert to fraction form
115,189.26/172,861.74 = 40,310.07/x - Step 3: Cross multiply
115,189.26x = 172,861.74 × 40,310.07 - Step 4: Simplify right side
115,189.26x = 6,968,068,839.72 - Step 5: Solve for x
x = 6,968,068,839.72/115,189.26 - Step 6: Final answer
x = 60,492.35
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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.