Finding the Fourth Proportional to 126,868.97, 190,243.85 and 73,576.09
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Solution
The fourth proportional to 126,868.97, 190,243.85 and 73,576.09 is: 110,329.57
Step by Step Solution
- Step 1: Write the proportion equation
126,868.97 : 190,243.85 = 73,576.09 : x - Step 2: Convert to fraction form
126,868.97/190,243.85 = 73,576.09/x - Step 3: Cross multiply
126,868.97x = 190,243.85 × 73,576.09 - Step 4: Simplify right side
126,868.97x = 13,997,398,337.88 - Step 5: Solve for x
x = 13,997,398,337.88/126,868.97 - Step 6: Final answer
x = 110,329.57
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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.