Finding the Fourth Proportional to 171,533.94, 257,163.45 and 81,531.48
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Solution
The fourth proportional to 171,533.94, 257,163.45 and 81,531.48 is: 122,231.88
Step by Step Solution
- Step 1: Write the proportion equation
171,533.94 : 257,163.45 = 81,531.48 : x - Step 2: Convert to fraction form
171,533.94/257,163.45 = 81,531.48/x - Step 3: Cross multiply
171,533.94x = 257,163.45 × 81,531.48 - Step 4: Simplify right side
171,533.94x = 20,966,916,680.41 - Step 5: Solve for x
x = 20,966,916,680.41/171,533.94 - Step 6: Final answer
x = 122,231.88
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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.