Finding the Fourth Proportional to 189,738.99, 261,840.06 and 104,856.09
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Solution
The fourth proportional to 189,738.99, 261,840.06 and 104,856.09 is: 144,701.54
Step by Step Solution
- Step 1: Write the proportion equation
189,738.99 : 261,840.06 = 104,856.09 : x - Step 2: Convert to fraction form
189,738.99/261,840.06 = 104,856.09/x - Step 3: Cross multiply
189,738.99x = 261,840.06 × 104,856.09 - Step 4: Simplify right side
189,738.99x = 27,455,524,896.97 - Step 5: Solve for x
x = 27,455,524,896.97/189,738.99 - Step 6: Final answer
x = 144,701.54
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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.