Finding the Fourth Proportional to 100,576.70, 150,865.03 and 25,696.99
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Solution
The fourth proportional to 100,576.70, 150,865.03 and 25,696.99 is: 38,545.48
Step by Step Solution
- Step 1: Write the proportion equation
100,576.70 : 150,865.03 = 25,696.99 : x - Step 2: Convert to fraction form
100,576.70/150,865.03 = 25,696.99/x - Step 3: Cross multiply
100,576.70x = 150,865.03 × 25,696.99 - Step 4: Simplify right side
100,576.70x = 3,876,777,167.26 - Step 5: Solve for x
x = 3,876,777,167.26/100,576.70 - Step 6: Final answer
x = 38,545.48
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1.5x scale
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.