Finding the Fourth Proportional to 108.93, 163.14 and 70.32
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Solution
The fourth proportional to 108.93, 163.14 and 70.32 is: 105.32
Step by Step Solution
- Step 1: Write the proportion equation
108.93 : 163.14 = 70.32 : x - Step 2: Convert to fraction form
108.93/163.14 = 70.32/x - Step 3: Cross multiply
108.93x = 163.14 × 70.32 - Step 4: Simplify right side
108.93x = 11,472.00 - Step 5: Solve for x
x = 11,472.00/108.93 - Step 6: Final answer
x = 105.32
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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.