Finding the Fourth Proportional to 128,995.23, 193,382.56 and 48,988.41
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Solution
The fourth proportional to 128,995.23, 193,382.56 and 48,988.41 is: 73,440.73
Step by Step Solution
- Step 1: Write the proportion equation
128,995.23 : 193,382.56 = 48,988.41 : x - Step 2: Convert to fraction form
128,995.23/193,382.56 = 48,988.41/x - Step 3: Cross multiply
128,995.23x = 193,382.56 × 48,988.41 - Step 4: Simplify right side
128,995.23x = 9,473,504,136.13 - Step 5: Solve for x
x = 9,473,504,136.13/128,995.23 - Step 6: Final answer
x = 73,440.73
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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.