Finding the Fourth Proportional to 141.80, 195.84 and 108.99
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Solution
The fourth proportional to 141.80, 195.84 and 108.99 is: 150.53
Step by Step Solution
- Step 1: Write the proportion equation
141.80 : 195.84 = 108.99 : x - Step 2: Convert to fraction form
141.80/195.84 = 108.99/x - Step 3: Cross multiply
141.80x = 195.84 × 108.99 - Step 4: Simplify right side
141.80x = 21,344.60 - Step 5: Solve for x
x = 21,344.60/141.80 - Step 6: Final answer
x = 150.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.