Finding the Fourth Proportional to 112.49, 168.69 and 44.03
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Solution
The fourth proportional to 112.49, 168.69 and 44.03 is: 66.02
Step by Step Solution
- Step 1: Write the proportion equation
112.49 : 168.69 = 44.03 : x - Step 2: Convert to fraction form
112.49/168.69 = 44.03/x - Step 3: Cross multiply
112.49x = 168.69 × 44.03 - Step 4: Simplify right side
112.49x = 7,426.41 - Step 5: Solve for x
x = 7,426.41/112.49 - Step 6: Final answer
x = 66.02
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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.