Finding the Fourth Proportional to 125.14, 187.66 and 71.14
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Solution
The fourth proportional to 125.14, 187.66 and 71.14 is: 106.68
Step by Step Solution
- Step 1: Write the proportion equation
125.14 : 187.66 = 71.14 : x - Step 2: Convert to fraction form
125.14/187.66 = 71.14/x - Step 3: Cross multiply
125.14x = 187.66 × 71.14 - Step 4: Simplify right side
125.14x = 13,350.13 - Step 5: Solve for x
x = 13,350.13/125.14 - Step 6: Final answer
x = 106.68
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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.