Finding the Fourth Proportional to 103,037.70, 154,556.55 and 100,121.70
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Solution
The fourth proportional to 103,037.70, 154,556.55 and 100,121.70 is: 150,182.55
Step by Step Solution
- Step 1: Write the proportion equation
103,037.70 : 154,556.55 = 100,121.70 : x - Step 2: Convert to fraction form
103,037.70/154,556.55 = 100,121.70/x - Step 3: Cross multiply
103,037.70x = 154,556.55 × 100,121.70 - Step 4: Simplify right side
103,037.70x = 15,474,464,532.14 - Step 5: Solve for x
x = 15,474,464,532.14/103,037.70 - Step 6: Final answer
x = 150,182.55
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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.