Finding the Fourth Proportional to 189,821.55, 261,959.21 and 104,944.08
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Solution
The fourth proportional to 189,821.55, 261,959.21 and 104,944.08 is: 144,825.86
Step by Step Solution
- Step 1: Write the proportion equation
189,821.55 : 261,959.21 = 104,944.08 : x - Step 2: Convert to fraction form
189,821.55/261,959.21 = 104,944.08/x - Step 3: Cross multiply
189,821.55x = 261,959.21 × 104,944.08 - Step 4: Simplify right side
189,821.55x = 27,491,069,535.68 - Step 5: Solve for x
x = 27,491,069,535.68/189,821.55 - Step 6: Final answer
x = 144,825.86
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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.