Finding the Fourth Proportional to 189,205.08, 261,105.06 and 104,325.18
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Solution
The fourth proportional to 189,205.08, 261,105.06 and 104,325.18 is: 143,969.88
Step by Step Solution
- Step 1: Write the proportion equation
189,205.08 : 261,105.06 = 104,325.18 : x - Step 2: Convert to fraction form
189,205.08/261,105.06 = 104,325.18/x - Step 3: Cross multiply
189,205.08x = 261,105.06 × 104,325.18 - Step 4: Simplify right side
189,205.08x = 27,239,832,383.41 - Step 5: Solve for x
x = 27,239,832,383.41/189,205.08 - Step 6: Final answer
x = 143,969.88
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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.