Finding the Fourth Proportional to 126,618.97, 189,858.33 and 51,791.65
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Solution
The fourth proportional to 126,618.97, 189,858.33 and 51,791.65 is: 77,658.79
Step by Step Solution
- Step 1: Write the proportion equation
126,618.97 : 189,858.33 = 51,791.65 : x - Step 2: Convert to fraction form
126,618.97/189,858.33 = 51,791.65/x - Step 3: Cross multiply
126,618.97x = 189,858.33 × 51,791.65 - Step 4: Simplify right side
126,618.97x = 9,833,076,176.94 - Step 5: Solve for x
x = 9,833,076,176.94/126,618.97 - Step 6: Final answer
x = 77,658.79
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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.