Finding the Fourth Proportional to 125.91, 188.86 and 44.75
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Solution
The fourth proportional to 125.91, 188.86 and 44.75 is: 67.12
Step by Step Solution
- Step 1: Write the proportion equation
125.91 : 188.86 = 44.75 : x - Step 2: Convert to fraction form
125.91/188.86 = 44.75/x - Step 3: Cross multiply
125.91x = 188.86 × 44.75 - Step 4: Simplify right side
125.91x = 8,451.49 - Step 5: Solve for x
x = 8,451.49/125.91 - Step 6: Final answer
x = 67.12
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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.