Finding the Fourth Proportional to 129.49, 194.36 and 93.58
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Solution
The fourth proportional to 129.49, 194.36 and 93.58 is: 140.46
Step by Step Solution
- Step 1: Write the proportion equation
129.49 : 194.36 = 93.58 : x - Step 2: Convert to fraction form
129.49/194.36 = 93.58/x - Step 3: Cross multiply
129.49x = 194.36 × 93.58 - Step 4: Simplify right side
129.49x = 18,188.21 - Step 5: Solve for x
x = 18,188.21/129.49 - Step 6: Final answer
x = 140.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.