Finding the Fourth Proportional to 189,912.99, 262,075.46 and 105,028.23
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Solution
The fourth proportional to 189,912.99, 262,075.46 and 105,028.23 is: 144,936.48
Step by Step Solution
- Step 1: Write the proportion equation
189,912.99 : 262,075.46 = 105,028.23 : x - Step 2: Convert to fraction form
189,912.99/262,075.46 = 105,028.23/x - Step 3: Cross multiply
189,912.99x = 262,075.46 × 105,028.23 - Step 4: Simplify right side
189,912.99x = 27,525,321,165.09 - Step 5: Solve for x
x = 27,525,321,165.09/189,912.99 - Step 6: Final answer
x = 144,936.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.