Finding the Fourth Proportional to 145.67, 201.10 and 101.99
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Solution
The fourth proportional to 145.67, 201.10 and 101.99 is: 140.80
Step by Step Solution
- Step 1: Write the proportion equation
145.67 : 201.10 = 101.99 : x - Step 2: Convert to fraction form
145.67/201.10 = 101.99/x - Step 3: Cross multiply
145.67x = 201.10 × 101.99 - Step 4: Simplify right side
145.67x = 20,509.68 - Step 5: Solve for x
x = 20,509.68/145.67 - Step 6: Final answer
x = 140.80
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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.