Finding the Fourth Proportional to 113,847.38, 157,118.37 and 66,115.70
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Solution
The fourth proportional to 113,847.38, 157,118.37 and 66,115.70 is: 91,244.88
Step by Step Solution
- Step 1: Write the proportion equation
113,847.38 : 157,118.37 = 66,115.70 : x - Step 2: Convert to fraction form
113,847.38/157,118.37 = 66,115.70/x - Step 3: Cross multiply
113,847.38x = 157,118.37 × 66,115.70 - Step 4: Simplify right side
113,847.38x = 10,387,991,015.41 - Step 5: Solve for x
x = 10,387,991,015.41/113,847.38 - Step 6: Final answer
x = 91,244.88
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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.