Finding the Fourth Proportional to 127.77, 191.46 and 69.99
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Solution
The fourth proportional to 127.77, 191.46 and 69.99 is: 104.88
Step by Step Solution
- Step 1: Write the proportion equation
127.77 : 191.46 = 69.99 : x - Step 2: Convert to fraction form
127.77/191.46 = 69.99/x - Step 3: Cross multiply
127.77x = 191.46 × 69.99 - Step 4: Simplify right side
127.77x = 13,400.29 - Step 5: Solve for x
x = 13,400.29/127.77 - Step 6: Final answer
x = 104.88
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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.