Finding the Fourth Proportional to 121,029.05, 167,007.21 and 67,305.44
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Solution
The fourth proportional to 121,029.05, 167,007.21 and 67,305.44 is: 92,874.35
Step by Step Solution
- Step 1: Write the proportion equation
121,029.05 : 167,007.21 = 67,305.44 : x - Step 2: Convert to fraction form
121,029.05/167,007.21 = 67,305.44/x - Step 3: Cross multiply
121,029.05x = 167,007.21 × 67,305.44 - Step 4: Simplify right side
121,029.05x = 11,240,493,752.22 - Step 5: Solve for x
x = 11,240,493,752.22/121,029.05 - Step 6: Final answer
x = 92,874.35
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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.