Finding the Fourth Proportional to 194,163.92, 291,359.12 and 81,837.28
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Solution
The fourth proportional to 194,163.92, 291,359.12 and 81,837.28 is: 122,803.65
Step by Step Solution
- Step 1: Write the proportion equation
194,163.92 : 291,359.12 = 81,837.28 : x - Step 2: Convert to fraction form
194,163.92/291,359.12 = 81,837.28/x - Step 3: Cross multiply
194,163.92x = 291,359.12 × 81,837.28 - Step 4: Simplify right side
194,163.92x = 23,844,037,883.99 - Step 5: Solve for x
x = 23,844,037,883.99/194,163.92 - Step 6: Final answer
x = 122,803.65
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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.