Finding the Fourth Proportional to 135,843.36, 203,775.96 and 51,643.80
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Solution
The fourth proportional to 135,843.36, 203,775.96 and 51,643.80 is: 77,469.85
Step by Step Solution
- Step 1: Write the proportion equation
135,843.36 : 203,775.96 = 51,643.80 : x - Step 2: Convert to fraction form
135,843.36/203,775.96 = 51,643.80/x - Step 3: Cross multiply
135,843.36x = 203,775.96 × 51,643.80 - Step 4: Simplify right side
135,843.36x = 10,523,764,923.05 - Step 5: Solve for x
x = 10,523,764,923.05/135,843.36 - Step 6: Final answer
x = 77,469.85
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1.5x scale
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.