Finding the Fourth Proportional to 126,869.76, 175,080.26 and 70,284.78
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Solution
The fourth proportional to 126,869.76, 175,080.26 and 70,284.78 is: 96,992.99
Step by Step Solution
- Step 1: Write the proportion equation
126,869.76 : 175,080.26 = 70,284.78 : x - Step 2: Convert to fraction form
126,869.76/175,080.26 = 70,284.78/x - Step 3: Cross multiply
126,869.76x = 175,080.26 × 70,284.78 - Step 4: Simplify right side
126,869.76x = 12,305,477,556.44 - Step 5: Solve for x
x = 12,305,477,556.44/126,869.76 - Step 6: Final answer
x = 96,992.99
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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.