Finding the Fourth Proportional to 108.10, 149.18 and 58.97
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Solution
The fourth proportional to 108.10, 149.18 and 58.97 is: 81.39
Step by Step Solution
- Step 1: Write the proportion equation
108.10 : 149.18 = 58.97 : x - Step 2: Convert to fraction form
108.10/149.18 = 58.97/x - Step 3: Cross multiply
108.10x = 149.18 × 58.97 - Step 4: Simplify right side
108.10x = 8,797.41 - Step 5: Solve for x
x = 8,797.41/108.10 - Step 6: Final answer
x = 81.39
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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.