Finding the Fourth Proportional to 110.51, 164.99 and 84.70
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Solution
The fourth proportional to 110.51, 164.99 and 84.70 is: 126.44
Step by Step Solution
- Step 1: Write the proportion equation
110.51 : 164.99 = 84.70 : x - Step 2: Convert to fraction form
110.51/164.99 = 84.70/x - Step 3: Cross multiply
110.51x = 164.99 × 84.70 - Step 4: Simplify right side
110.51x = 13,973.40 - Step 5: Solve for x
x = 13,973.40/110.51 - Step 6: Final answer
x = 126.44
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.