Finding the Fourth Proportional to 104,382.47, 156,571.89 and 72,331.99
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Solution
The fourth proportional to 104,382.47, 156,571.89 and 72,331.99 is: 108,496.72
Step by Step Solution
- Step 1: Write the proportion equation
104,382.47 : 156,571.89 = 72,331.99 : x - Step 2: Convert to fraction form
104,382.47/156,571.89 = 72,331.99/x - Step 3: Cross multiply
104,382.47x = 156,571.89 × 72,331.99 - Step 4: Simplify right side
104,382.47x = 11,325,155,719.09 - Step 5: Solve for x
x = 11,325,155,719.09/104,382.47 - Step 6: Final answer
x = 108,496.72
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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.