Finding the Fourth Proportional to 128,533.41, 192,674.27 and 53,674.96
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Solution
The fourth proportional to 128,533.41, 192,674.27 and 53,674.96 is: 80,459.89
Step by Step Solution
- Step 1: Write the proportion equation
128,533.41 : 192,674.27 = 53,674.96 : x - Step 2: Convert to fraction form
128,533.41/192,674.27 = 53,674.96/x - Step 3: Cross multiply
128,533.41x = 192,674.27 × 53,674.96 - Step 4: Simplify right side
128,533.41x = 10,341,783,735.28 - Step 5: Solve for x
x = 10,341,783,735.28/128,533.41 - Step 6: Final answer
x = 80,459.89
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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.