Finding the Fourth Proportional to 119.30, 178.50 and 95
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Solution
The fourth proportional to 119.30, 178.50 and 95 is: 142.14
Step by Step Solution
- Step 1: Write the proportion equation
119.30 : 178.50 = 95 : x - Step 2: Convert to fraction form
119.30/178.50 = 95/x - Step 3: Cross multiply
119.30x = 178.50 × 95 - Step 4: Simplify right side
119.30x = 16,957.50 - Step 5: Solve for x
x = 16,957.50/119.30 - Step 6: Final answer
x = 142.14
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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.