Finding the Fourth Proportional to 126,840.58, 175,027.26 and 75,843.09
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Solution
The fourth proportional to 126,840.58, 175,027.26 and 75,843.09 is: 104,655.85
Step by Step Solution
- Step 1: Write the proportion equation
126,840.58 : 175,027.26 = 75,843.09 : x - Step 2: Convert to fraction form
126,840.58/175,027.26 = 75,843.09/x - Step 3: Cross multiply
126,840.58x = 175,027.26 × 75,843.09 - Step 4: Simplify right side
126,840.58x = 13,274,608,232.63 - Step 5: Solve for x
x = 13,274,608,232.63/126,840.58 - Step 6: Final answer
x = 104,655.85
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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.