Finding the Fourth Proportional to 120,319.32, 180,504.08 and 36,076.08
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Solution
The fourth proportional to 120,319.32, 180,504.08 and 36,076.08 is: 54,121.65
Step by Step Solution
- Step 1: Write the proportion equation
120,319.32 : 180,504.08 = 36,076.08 : x - Step 2: Convert to fraction form
120,319.32/180,504.08 = 36,076.08/x - Step 3: Cross multiply
120,319.32x = 180,504.08 × 36,076.08 - Step 4: Simplify right side
120,319.32x = 6,511,879,630.41 - Step 5: Solve for x
x = 6,511,879,630.41/120,319.32 - Step 6: Final answer
x = 54,121.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.