Finding the Fourth Proportional to 189,170.39, 261,057.16 and 104,290.49
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Solution
The fourth proportional to 189,170.39, 261,057.16 and 104,290.49 is: 143,921.99
Step by Step Solution
- Step 1: Write the proportion equation
189,170.39 : 261,057.16 = 104,290.49 : x - Step 2: Convert to fraction form
189,170.39/261,057.16 = 104,290.49/x - Step 3: Cross multiply
189,170.39x = 261,057.16 × 104,290.49 - Step 4: Simplify right side
189,170.39x = 27,225,779,917.41 - Step 5: Solve for x
x = 27,225,779,917.41/189,170.39 - Step 6: Final answer
x = 143,921.99
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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.