Finding the Fourth Proportional to 84.84, 127.26 and 70.44
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Solution
The fourth proportional to 84.84, 127.26 and 70.44 is: 105.66
Step by Step Solution
- Step 1: Write the proportion equation
84.84 : 127.26 = 70.44 : x - Step 2: Convert to fraction form
84.84/127.26 = 70.44/x - Step 3: Cross multiply
84.84x = 127.26 × 70.44 - Step 4: Simplify right side
84.84x = 8,964.19 - Step 5: Solve for x
x = 8,964.19/84.84 - Step 6: Final answer
x = 105.66
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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.