Finding the Fourth Proportional to 146.87, 202.68 and 84.70
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Solution
The fourth proportional to 146.87, 202.68 and 84.70 is: 116.88
Step by Step Solution
- Step 1: Write the proportion equation
146.87 : 202.68 = 84.70 : x - Step 2: Convert to fraction form
146.87/202.68 = 84.70/x - Step 3: Cross multiply
146.87x = 202.68 × 84.70 - Step 4: Simplify right side
146.87x = 17,165.98 - Step 5: Solve for x
x = 17,165.98/146.87 - Step 6: Final answer
x = 116.88
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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.