Finding the Fourth Proportional to 127.46, 190.94 and 83.99
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Solution
The fourth proportional to 127.46, 190.94 and 83.99 is: 125.82
Step by Step Solution
- Step 1: Write the proportion equation
127.46 : 190.94 = 83.99 : x - Step 2: Convert to fraction form
127.46/190.94 = 83.99/x - Step 3: Cross multiply
127.46x = 190.94 × 83.99 - Step 4: Simplify right side
127.46x = 16,037.11 - Step 5: Solve for x
x = 16,037.11/127.46 - Step 6: Final answer
x = 125.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.