Finding the Fourth Proportional to 140.01, 193.14 and 84.73
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Solution
The fourth proportional to 140.01, 193.14 and 84.73 is: 116.88
Step by Step Solution
- Step 1: Write the proportion equation
140.01 : 193.14 = 84.73 : x - Step 2: Convert to fraction form
140.01/193.14 = 84.73/x - Step 3: Cross multiply
140.01x = 193.14 × 84.73 - Step 4: Simplify right side
140.01x = 16,364.99 - Step 5: Solve for x
x = 16,364.99/140.01 - 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.