Finding the Fourth Proportional to 128,576.56, 192,863.04 and 125,399.92
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Solution
The fourth proportional to 128,576.56, 192,863.04 and 125,399.92 is: 188,098.12
Step by Step Solution
- Step 1: Write the proportion equation
128,576.56 : 192,863.04 = 125,399.92 : x - Step 2: Convert to fraction form
128,576.56/192,863.04 = 125,399.92/x - Step 3: Cross multiply
128,576.56x = 192,863.04 × 125,399.92 - Step 4: Simplify right side
128,576.56x = 24,185,009,786.96 - Step 5: Solve for x
x = 24,185,009,786.96/128,576.56 - Step 6: Final answer
x = 188,098.12
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1.5x scale
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.