Finding the Fourth Proportional to 127.99, 191.94 and 41.31
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Solution
The fourth proportional to 127.99, 191.94 and 41.31 is: 61.95
Step by Step Solution
- Step 1: Write the proportion equation
127.99 : 191.94 = 41.31 : x - Step 2: Convert to fraction form
127.99/191.94 = 41.31/x - Step 3: Cross multiply
127.99x = 191.94 × 41.31 - Step 4: Simplify right side
127.99x = 7,929.24 - Step 5: Solve for x
x = 7,929.24/127.99 - Step 6: Final answer
x = 61.95
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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.