Finding the Fourth Proportional to 107.67, 148.62 and 63.99
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Solution
The fourth proportional to 107.67, 148.62 and 63.99 is: 88.33
Step by Step Solution
- Step 1: Write the proportion equation
107.67 : 148.62 = 63.99 : x - Step 2: Convert to fraction form
107.67/148.62 = 63.99/x - Step 3: Cross multiply
107.67x = 148.62 × 63.99 - Step 4: Simplify right side
107.67x = 9,510.19 - Step 5: Solve for x
x = 9,510.19/107.67 - Step 6: Final answer
x = 88.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.