Finding the Fourth Proportional to 125.19, 187.63 and 94.65
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Solution
The fourth proportional to 125.19, 187.63 and 94.65 is: 141.86
Step by Step Solution
- Step 1: Write the proportion equation
125.19 : 187.63 = 94.65 : x - Step 2: Convert to fraction form
125.19/187.63 = 94.65/x - Step 3: Cross multiply
125.19x = 187.63 × 94.65 - Step 4: Simplify right side
125.19x = 17,759.18 - Step 5: Solve for x
x = 17,759.18/125.19 - Step 6: Final answer
x = 141.86
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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.