Finding the Fourth Proportional to 189,107.08, 283,629.60 and 76,782.76
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Solution
The fourth proportional to 189,107.08, 283,629.60 and 76,782.76 is: 115,161.55
Step by Step Solution
- Step 1: Write the proportion equation
189,107.08 : 283,629.60 = 76,782.76 : x - Step 2: Convert to fraction form
189,107.08/283,629.60 = 76,782.76/x - Step 3: Cross multiply
189,107.08x = 283,629.60 × 76,782.76 - Step 4: Simplify right side
189,107.08x = 21,777,863,505.70 - Step 5: Solve for x
x = 21,777,863,505.70/189,107.08 - Step 6: Final answer
x = 115,161.55
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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.