Finding the Fourth Proportional to 138,756.94, 208,135.42 and 33,575.92
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Solution
The fourth proportional to 138,756.94, 208,135.42 and 33,575.92 is: 50,363.88
Step by Step Solution
- Step 1: Write the proportion equation
138,756.94 : 208,135.42 = 33,575.92 : x - Step 2: Convert to fraction form
138,756.94/208,135.42 = 33,575.92/x - Step 3: Cross multiply
138,756.94x = 208,135.42 × 33,575.92 - Step 4: Simplify right side
138,756.94x = 6,988,338,211.09 - Step 5: Solve for x
x = 6,988,338,211.09/138,756.94 - Step 6: Final answer
x = 50,363.88
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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.