Finding the Fourth Proportional to 119.08, 178.68 and 84.94
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Solution
The fourth proportional to 119.08, 178.68 and 84.94 is: 127.45
Step by Step Solution
- Step 1: Write the proportion equation
119.08 : 178.68 = 84.94 : x - Step 2: Convert to fraction form
119.08/178.68 = 84.94/x - Step 3: Cross multiply
119.08x = 178.68 × 84.94 - Step 4: Simplify right side
119.08x = 15,177.08 - Step 5: Solve for x
x = 15,177.08/119.08 - Step 6: Final answer
x = 127.45
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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.