Finding the Fourth Proportional to 125.70, 166.08 and 125.70
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Solution
The fourth proportional to 125.70, 166.08 and 125.70 is: 166.08
Step by Step Solution
- Step 1: Write the proportion equation
125.70 : 166.08 = 125.70 : x - Step 2: Convert to fraction form
125.70/166.08 = 125.70/x - Step 3: Cross multiply
125.70x = 166.08 × 125.70 - Step 4: Simplify right side
125.70x = 20,876.26 - Step 5: Solve for x
x = 20,876.26/125.70 - Step 6: Final answer
x = 166.08
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Why These Related Problems?
These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.