Finding the Fourth Proportional to 138,210.76, 206,125.97 and 135,722.44
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Solution
The fourth proportional to 138,210.76, 206,125.97 and 135,722.44 is: 202,414.92
Step by Step Solution
- Step 1: Write the proportion equation
138,210.76 : 206,125.97 = 135,722.44 : x - Step 2: Convert to fraction form
138,210.76/206,125.97 = 135,722.44/x - Step 3: Cross multiply
138,210.76x = 206,125.97 × 135,722.44 - Step 4: Simplify right side
138,210.76x = 27,975,919,595.77 - Step 5: Solve for x
x = 27,975,919,595.77/138,210.76 - Step 6: Final answer
x = 202,414.92
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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.