Finding the Fourth Proportional to 189,846.99, 261,994.10 and 104,967.09
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Solution
The fourth proportional to 189,846.99, 261,994.10 and 104,967.09 is: 144,857.49
Step by Step Solution
- Step 1: Write the proportion equation
189,846.99 : 261,994.10 = 104,967.09 : x - Step 2: Convert to fraction form
189,846.99/261,994.10 = 104,967.09/x - Step 3: Cross multiply
189,846.99x = 261,994.10 × 104,967.09 - Step 4: Simplify right side
189,846.99x = 27,500,757,749.33 - Step 5: Solve for x
x = 27,500,757,749.33/189,846.99 - Step 6: Final answer
x = 144,857.49
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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.