Finding the Fourth Proportional to 119.10, 178.53 and 73.44
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Solution
The fourth proportional to 119.10, 178.53 and 73.44 is: 110.09
Step by Step Solution
- Step 1: Write the proportion equation
119.10 : 178.53 = 73.44 : x - Step 2: Convert to fraction form
119.10/178.53 = 73.44/x - Step 3: Cross multiply
119.10x = 178.53 × 73.44 - Step 4: Simplify right side
119.10x = 13,111.24 - Step 5: Solve for x
x = 13,111.24/119.10 - Step 6: Final answer
x = 110.09
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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.