Finding the Fourth Proportional to 128,422.65, 192,586.08 and 44,158.98
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Solution
The fourth proportional to 128,422.65, 192,586.08 and 44,158.98 is: 66,222.00
Step by Step Solution
- Step 1: Write the proportion equation
128,422.65 : 192,586.08 = 44,158.98 : x - Step 2: Convert to fraction form
128,422.65/192,586.08 = 44,158.98/x - Step 3: Cross multiply
128,422.65x = 192,586.08 × 44,158.98 - Step 4: Simplify right side
128,422.65x = 8,504,404,855.00 - Step 5: Solve for x
x = 8,504,404,855.00/128,422.65 - Step 6: Final answer
x = 66,222.00
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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.