Finding the Fourth Proportional to 135,393.10, 186,882.97 and 87,649.67
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Solution
The fourth proportional to 135,393.10, 186,882.97 and 87,649.67 is: 120,982.76
Step by Step Solution
- Step 1: Write the proportion equation
135,393.10 : 186,882.97 = 87,649.67 : x - Step 2: Convert to fraction form
135,393.10/186,882.97 = 87,649.67/x - Step 3: Cross multiply
135,393.10x = 186,882.97 × 87,649.67 - Step 4: Simplify right side
135,393.10x = 16,380,230,649.12 - Step 5: Solve for x
x = 16,380,230,649.12/135,393.10 - Step 6: Final answer
x = 120,982.76
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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.