Finding the Fourth Proportional to 147,986.70, 221,797.80 and 100,601.70
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Solution
The fourth proportional to 147,986.70, 221,797.80 and 100,601.70 is: 150,778.66
Step by Step Solution
- Step 1: Write the proportion equation
147,986.70 : 221,797.80 = 100,601.70 : x - Step 2: Convert to fraction form
147,986.70/221,797.80 = 100,601.70/x - Step 3: Cross multiply
147,986.70x = 221,797.80 × 100,601.70 - Step 4: Simplify right side
147,986.70x = 22,313,235,736.26 - Step 5: Solve for x
x = 22,313,235,736.26/147,986.70 - Step 6: Final answer
x = 150,778.66
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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.