Finding the Fourth Proportional to 189,770.58, 261,884.42 and 103,729.68
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Solution
The fourth proportional to 189,770.58, 261,884.42 and 103,729.68 is: 143,147.52
Step by Step Solution
- Step 1: Write the proportion equation
189,770.58 : 261,884.42 = 103,729.68 : x - Step 2: Convert to fraction form
189,770.58/261,884.42 = 103,729.68/x - Step 3: Cross multiply
189,770.58x = 261,884.42 × 103,729.68 - Step 4: Simplify right side
189,770.58x = 27,165,187,083.59 - Step 5: Solve for x
x = 27,165,187,083.59/189,770.58 - Step 6: Final answer
x = 143,147.52
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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.