Finding the Fourth Proportional to 103,740.92, 155,631.78 and 37,163.12
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Solution
The fourth proportional to 103,740.92, 155,631.78 and 37,163.12 is: 55,751.99
Step by Step Solution
- Step 1: Write the proportion equation
103,740.92 : 155,631.78 = 37,163.12 : x - Step 2: Convert to fraction form
103,740.92/155,631.78 = 37,163.12/x - Step 3: Cross multiply
103,740.92x = 155,631.78 × 37,163.12 - Step 4: Simplify right side
103,740.92x = 5,783,762,515.95 - Step 5: Solve for x
x = 5,783,762,515.95/103,740.92 - Step 6: Final answer
x = 55,751.99
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1.5x scale
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.