Finding the Fourth Proportional to 107.23, 147.99 and 68.44
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Solution
The fourth proportional to 107.23, 147.99 and 68.44 is: 94.46
Step by Step Solution
- Step 1: Write the proportion equation
107.23 : 147.99 = 68.44 : x - Step 2: Convert to fraction form
107.23/147.99 = 68.44/x - Step 3: Cross multiply
107.23x = 147.99 × 68.44 - Step 4: Simplify right side
107.23x = 10,128.44 - Step 5: Solve for x
x = 10,128.44/107.23 - Step 6: Final answer
x = 94.46
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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.