Finding the Fourth Proportional to 189,676.99, 261,751.15 and 103,634.08
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Solution
The fourth proportional to 189,676.99, 261,751.15 and 103,634.08 is: 143,013.34
Step by Step Solution
- Step 1: Write the proportion equation
189,676.99 : 261,751.15 = 103,634.08 : x - Step 2: Convert to fraction form
189,676.99/261,751.15 = 103,634.08/x - Step 3: Cross multiply
189,676.99x = 261,751.15 × 103,634.08 - Step 4: Simplify right side
189,676.99x = 27,126,339,983.77 - Step 5: Solve for x
x = 27,126,339,983.77/189,676.99 - Step 6: Final answer
x = 143,013.34
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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.