Finding the Fourth Proportional to 145.70, 201.10 and 114.13
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Solution
The fourth proportional to 145.70, 201.10 and 114.13 is: 157.52
Step by Step Solution
- Step 1: Write the proportion equation
145.70 : 201.10 = 114.13 : x - Step 2: Convert to fraction form
145.70/201.10 = 114.13/x - Step 3: Cross multiply
145.70x = 201.10 × 114.13 - Step 4: Simplify right side
145.70x = 22,950.97 - Step 5: Solve for x
x = 22,950.97/145.70 - Step 6: Final answer
x = 157.52
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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.