Finding the Fourth Proportional to 135,906.36, 203,778.78 and 51,672.69
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Solution
The fourth proportional to 135,906.36, 203,778.78 and 51,672.69 is: 77,478.33
Step by Step Solution
- Step 1: Write the proportion equation
135,906.36 : 203,778.78 = 51,672.69 : x - Step 2: Convert to fraction form
135,906.36/203,778.78 = 51,672.69/x - Step 3: Cross multiply
135,906.36x = 203,778.78 × 51,672.69 - Step 4: Simplify right side
135,906.36x = 10,529,797,679.08 - Step 5: Solve for x
x = 10,529,797,679.08/135,906.36 - Step 6: Final answer
x = 77,478.33
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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.