Finding the Fourth Proportional to 125,614.20, 188,129.70 and 122,698.20
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Solution
The fourth proportional to 125,614.20, 188,129.70 and 122,698.20 is: 183,762.47
Step by Step Solution
- Step 1: Write the proportion equation
125,614.20 : 188,129.70 = 122,698.20 : x - Step 2: Convert to fraction form
125,614.20/188,129.70 = 122,698.20/x - Step 3: Cross multiply
125,614.20x = 188,129.70 × 122,698.20 - Step 4: Simplify right side
125,614.20x = 23,083,175,556.54 - Step 5: Solve for x
x = 23,083,175,556.54/125,614.20 - Step 6: Final answer
x = 183,762.47
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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.