Finding the Fourth Proportional to 131.98, 182.01 and 120.75
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Solution
The fourth proportional to 131.98, 182.01 and 120.75 is: 166.52
Step by Step Solution
- Step 1: Write the proportion equation
131.98 : 182.01 = 120.75 : x - Step 2: Convert to fraction form
131.98/182.01 = 120.75/x - Step 3: Cross multiply
131.98x = 182.01 × 120.75 - Step 4: Simplify right side
131.98x = 21,977.71 - Step 5: Solve for x
x = 21,977.71/131.98 - Step 6: Final answer
x = 166.52
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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.