Finding the Fourth Proportional to 99,542.40, 149,313.60 and 44,138.40
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Solution
The fourth proportional to 99,542.40, 149,313.60 and 44,138.40 is: 66,207.60
Step by Step Solution
- Step 1: Write the proportion equation
99,542.40 : 149,313.60 = 44,138.40 : x - Step 2: Convert to fraction form
99,542.40/149,313.60 = 44,138.40/x - Step 3: Cross multiply
99,542.40x = 149,313.60 × 44,138.40 - Step 4: Simplify right side
99,542.40x = 6,590,463,402.24 - Step 5: Solve for x
x = 6,590,463,402.24/99,542.40 - Step 6: Final answer
x = 66,207.60
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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.