Finding the Fourth Proportional to 119.08, 163.21 and 117.88
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Solution
The fourth proportional to 119.08, 163.21 and 117.88 is: 161.57
Step by Step Solution
- Step 1: Write the proportion equation
119.08 : 163.21 = 117.88 : x - Step 2: Convert to fraction form
119.08/163.21 = 117.88/x - Step 3: Cross multiply
119.08x = 163.21 × 117.88 - Step 4: Simplify right side
119.08x = 19,239.19 - Step 5: Solve for x
x = 19,239.19/119.08 - Step 6: Final answer
x = 161.57
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.