Finding the Fourth Proportional to 129.08, 193.56 and 55.94
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Solution
The fourth proportional to 129.08, 193.56 and 55.94 is: 83.88
Step by Step Solution
- Step 1: Write the proportion equation
129.08 : 193.56 = 55.94 : x - Step 2: Convert to fraction form
129.08/193.56 = 55.94/x - Step 3: Cross multiply
129.08x = 193.56 × 55.94 - Step 4: Simplify right side
129.08x = 10,826.78 - Step 5: Solve for x
x = 10,826.78/129.08 - Step 6: Final answer
x = 83.88
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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.