Finding the Fourth Proportional to 126,176.13, 174,079.09 and 80,879.09
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Solution
The fourth proportional to 126,176.13, 174,079.09 and 80,879.09 is: 111,584.96
Step by Step Solution
- Step 1: Write the proportion equation
126,176.13 : 174,079.09 = 80,879.09 : x - Step 2: Convert to fraction form
126,176.13/174,079.09 = 80,879.09/x - Step 3: Cross multiply
126,176.13x = 174,079.09 × 80,879.09 - Step 4: Simplify right side
126,176.13x = 14,079,358,387.23 - Step 5: Solve for x
x = 14,079,358,387.23/126,176.13 - Step 6: Final answer
x = 111,584.96
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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.