Finding the Fourth Proportional to 140.06, 193.08 and 107.26
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Solution
The fourth proportional to 140.06, 193.08 and 107.26 is: 147.86
Step by Step Solution
- Step 1: Write the proportion equation
140.06 : 193.08 = 107.26 : x - Step 2: Convert to fraction form
140.06/193.08 = 107.26/x - Step 3: Cross multiply
140.06x = 193.08 × 107.26 - Step 4: Simplify right side
140.06x = 20,709.68 - Step 5: Solve for x
x = 20,709.68/140.06 - Step 6: Final answer
x = 147.86
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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.