Finding the Fourth Proportional to 142.93, 195.54 and 142.53
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Solution
The fourth proportional to 142.93, 195.54 and 142.53 is: 194.99
Step by Step Solution
- Step 1: Write the proportion equation
142.93 : 195.54 = 142.53 : x - Step 2: Convert to fraction form
142.93/195.54 = 142.53/x - Step 3: Cross multiply
142.93x = 195.54 × 142.53 - Step 4: Simplify right side
142.93x = 27,870.32 - Step 5: Solve for x
x = 27,870.32/142.93 - Step 6: Final answer
x = 194.99
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.