Finding the Fourth Proportional to 139,310.36, 208,965.60 and 50,563.68
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Solution
The fourth proportional to 139,310.36, 208,965.60 and 50,563.68 is: 75,845.54
Step by Step Solution
- Step 1: Write the proportion equation
139,310.36 : 208,965.60 = 50,563.68 : x - Step 2: Convert to fraction form
139,310.36/208,965.60 = 50,563.68/x - Step 3: Cross multiply
139,310.36x = 208,965.60 × 50,563.68 - Step 4: Simplify right side
139,310.36x = 10,566,069,729.41 - Step 5: Solve for x
x = 10,566,069,729.41/139,310.36 - Step 6: Final answer
x = 75,845.54
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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.