Finding the Fourth Proportional to 113,749.38, 170,771.58 and 87,472.44
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Solution
The fourth proportional to 113,749.38, 170,771.58 and 87,472.44 is: 131,322.09
Step by Step Solution
- Step 1: Write the proportion equation
113,749.38 : 170,771.58 = 87,472.44 : x - Step 2: Convert to fraction form
113,749.38/170,771.58 = 87,472.44/x - Step 3: Cross multiply
113,749.38x = 170,771.58 × 87,472.44 - Step 4: Simplify right side
113,749.38x = 14,937,806,785.26 - Step 5: Solve for x
x = 14,937,806,785.26/113,749.38 - Step 6: Final answer
x = 131,322.09
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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.