Finding the Fourth Proportional to 145.87, 201.14 and 125.21
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Solution
The fourth proportional to 145.87, 201.14 and 125.21 is: 172.65
Step by Step Solution
- Step 1: Write the proportion equation
145.87 : 201.14 = 125.21 : x - Step 2: Convert to fraction form
145.87/201.14 = 125.21/x - Step 3: Cross multiply
145.87x = 201.14 × 125.21 - Step 4: Simplify right side
145.87x = 25,184.74 - Step 5: Solve for x
x = 25,184.74/145.87 - Step 6: Final answer
x = 172.65
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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.