Finding the Fourth Proportional to 138,195.57, 206,284.04 and 118,600.05
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Solution
The fourth proportional to 138,195.57, 206,284.04 and 118,600.05 is: 177,033.88
Step by Step Solution
- Step 1: Write the proportion equation
138,195.57 : 206,284.04 = 118,600.05 : x - Step 2: Convert to fraction form
138,195.57/206,284.04 = 118,600.05/x - Step 3: Cross multiply
138,195.57x = 206,284.04 × 118,600.05 - Step 4: Simplify right side
138,195.57x = 24,465,297,754.70 - Step 5: Solve for x
x = 24,465,297,754.70/138,195.57 - Step 6: Final answer
x = 177,033.88
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.