Finding the Fourth Proportional to 100,220.36, 150,170.62 and 73,442.26
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Solution
The fourth proportional to 100,220.36, 150,170.62 and 73,442.26 is: 110,046.20
Step by Step Solution
- Step 1: Write the proportion equation
100,220.36 : 150,170.62 = 73,442.26 : x - Step 2: Convert to fraction form
100,220.36/150,170.62 = 73,442.26/x - Step 3: Cross multiply
100,220.36x = 150,170.62 × 73,442.26 - Step 4: Simplify right side
100,220.36x = 11,028,869,718.40 - Step 5: Solve for x
x = 11,028,869,718.40/100,220.36 - Step 6: Final answer
x = 110,046.20
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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.