Finding the Fourth Proportional to 180,138.63, 270,198.19 and 91,389.83
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Solution
The fourth proportional to 180,138.63, 270,198.19 and 91,389.83 is: 137,079.80
Step by Step Solution
- Step 1: Write the proportion equation
180,138.63 : 270,198.19 = 91,389.83 : x - Step 2: Convert to fraction form
180,138.63/270,198.19 = 91,389.83/x - Step 3: Cross multiply
180,138.63x = 270,198.19 × 91,389.83 - Step 4: Simplify right side
180,138.63x = 24,693,366,650.41 - Step 5: Solve for x
x = 24,693,366,650.41/180,138.63 - Step 6: Final answer
x = 137,079.80
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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.