Finding the Fourth Proportional to 189,627.44, 261,680.60 and 103,588.68
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Solution
The fourth proportional to 189,627.44, 261,680.60 and 103,588.68 is: 142,949.50
Step by Step Solution
- Step 1: Write the proportion equation
189,627.44 : 261,680.60 = 103,588.68 : x - Step 2: Convert to fraction form
189,627.44/261,680.60 = 103,588.68/x - Step 3: Cross multiply
189,627.44x = 261,680.60 × 103,588.68 - Step 4: Simplify right side
189,627.44x = 27,107,147,935.61 - Step 5: Solve for x
x = 27,107,147,935.61/189,627.44 - Step 6: Final answer
x = 142,949.50
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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.