Finding the Fourth Proportional to 126,818.28, 190,297.43 and 70,689.99
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Solution
The fourth proportional to 126,818.28, 190,297.43 and 70,689.99 is: 106,074.01
Step by Step Solution
- Step 1: Write the proportion equation
126,818.28 : 190,297.43 = 70,689.99 : x - Step 2: Convert to fraction form
126,818.28/190,297.43 = 70,689.99/x - Step 3: Cross multiply
126,818.28x = 190,297.43 × 70,689.99 - Step 4: Simplify right side
126,818.28x = 13,452,123,423.73 - Step 5: Solve for x
x = 13,452,123,423.73/126,818.28 - Step 6: Final answer
x = 106,074.01
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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.