Finding the Fourth Proportional to 149,558.56, 206,391.46 and 81,576.99
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Solution
The fourth proportional to 149,558.56, 206,391.46 and 81,576.99 is: 112,576.60
Step by Step Solution
- Step 1: Write the proportion equation
149,558.56 : 206,391.46 = 81,576.99 : x - Step 2: Convert to fraction form
149,558.56/206,391.46 = 81,576.99/x - Step 3: Cross multiply
149,558.56x = 206,391.46 × 81,576.99 - Step 4: Simplify right side
149,558.56x = 16,836,794,485.57 - Step 5: Solve for x
x = 16,836,794,485.57/149,558.56 - Step 6: Final answer
x = 112,576.60
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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.