Finding the Fourth Proportional to 171,902.64, 257,906.75 and 82,059.99
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Solution
The fourth proportional to 171,902.64, 257,906.75 and 82,059.99 is: 123,115.18
Step by Step Solution
- Step 1: Write the proportion equation
171,902.64 : 257,906.75 = 82,059.99 : x - Step 2: Convert to fraction form
171,902.64/257,906.75 = 82,059.99/x - Step 3: Cross multiply
171,902.64x = 257,906.75 × 82,059.99 - Step 4: Simplify right side
171,902.64x = 21,163,824,915.63 - Step 5: Solve for x
x = 21,163,824,915.63/171,902.64 - Step 6: Final answer
x = 123,115.18
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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.