Finding the Fourth Proportional to 135.01, 202.62 and 74.14
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Solution
The fourth proportional to 135.01, 202.62 and 74.14 is: 111.27
Step by Step Solution
- Step 1: Write the proportion equation
135.01 : 202.62 = 74.14 : x - Step 2: Convert to fraction form
135.01/202.62 = 74.14/x - Step 3: Cross multiply
135.01x = 202.62 × 74.14 - Step 4: Simplify right side
135.01x = 15,022.25 - Step 5: Solve for x
x = 15,022.25/135.01 - Step 6: Final answer
x = 111.27
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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.