Finding the Fourth Proportional to 99,400.11, 149,129.56 and 57,310.39
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Solution
The fourth proportional to 99,400.11, 149,129.56 and 57,310.39 is: 85,982.53
Step by Step Solution
- Step 1: Write the proportion equation
99,400.11 : 149,129.56 = 57,310.39 : x - Step 2: Convert to fraction form
99,400.11/149,129.56 = 57,310.39/x - Step 3: Cross multiply
99,400.11x = 149,129.56 × 57,310.39 - Step 4: Simplify right side
99,400.11x = 8,546,673,244.13 - Step 5: Solve for x
x = 8,546,673,244.13/99,400.11 - Step 6: Final answer
x = 85,982.53
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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.