Finding the Fourth Proportional to 126,668.24, 190,149.60 and 74,115.44
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Solution
The fourth proportional to 126,668.24, 190,149.60 and 74,115.44 is: 111,259.31
Step by Step Solution
- Step 1: Write the proportion equation
126,668.24 : 190,149.60 = 74,115.44 : x - Step 2: Convert to fraction form
126,668.24/190,149.60 = 74,115.44/x - Step 3: Cross multiply
126,668.24x = 190,149.60 × 74,115.44 - Step 4: Simplify right side
126,668.24x = 14,093,021,269.82 - Step 5: Solve for x
x = 14,093,021,269.82/126,668.24 - Step 6: Final answer
x = 111,259.31
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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.