Finding the Fourth Proportional to 126,836.36, 175,033.74 and 73,121.12
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Solution
The fourth proportional to 126,836.36, 175,033.74 and 73,121.12 is: 100,906.89
Step by Step Solution
- Step 1: Write the proportion equation
126,836.36 : 175,033.74 = 73,121.12 : x - Step 2: Convert to fraction form
126,836.36/175,033.74 = 73,121.12/x - Step 3: Cross multiply
126,836.36x = 175,033.74 × 73,121.12 - Step 4: Simplify right side
126,836.36x = 12,798,663,106.59 - Step 5: Solve for x
x = 12,798,663,106.59/126,836.36 - Step 6: Final answer
x = 100,906.89
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1.5x scale
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.