Finding the Fourth Proportional to 99,163.73, 136,845.16 and 53,840.80
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Solution
The fourth proportional to 99,163.73, 136,845.16 and 53,840.80 is: 74,299.88
Step by Step Solution
- Step 1: Write the proportion equation
99,163.73 : 136,845.16 = 53,840.80 : x - Step 2: Convert to fraction form
99,163.73/136,845.16 = 53,840.80/x - Step 3: Cross multiply
99,163.73x = 136,845.16 × 53,840.80 - Step 4: Simplify right side
99,163.73x = 7,367,853,229.84 - Step 5: Solve for x
x = 7,367,853,229.84/99,163.73 - Step 6: Final answer
x = 74,299.88
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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.