Finding the Fourth Proportional to 108.12, 162.18 and 34.99
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Solution
The fourth proportional to 108.12, 162.18 and 34.99 is: 52.49
Step by Step Solution
- Step 1: Write the proportion equation
108.12 : 162.18 = 34.99 : x - Step 2: Convert to fraction form
108.12/162.18 = 34.99/x - Step 3: Cross multiply
108.12x = 162.18 × 34.99 - Step 4: Simplify right side
108.12x = 5,674.68 - Step 5: Solve for x
x = 5,674.68/108.12 - Step 6: Final answer
x = 52.49
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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.