Finding the Fourth Proportional to 122,467.20, 183,441.60 and 96,028.80
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Solution
The fourth proportional to 122,467.20, 183,441.60 and 96,028.80 is: 143,839.96
Step by Step Solution
- Step 1: Write the proportion equation
122,467.20 : 183,441.60 = 96,028.80 : x - Step 2: Convert to fraction form
122,467.20/183,441.60 = 96,028.80/x - Step 3: Cross multiply
122,467.20x = 183,441.60 × 96,028.80 - Step 4: Simplify right side
122,467.20x = 17,615,676,718.08 - Step 5: Solve for x
x = 17,615,676,718.08/122,467.20 - Step 6: Final answer
x = 143,839.96
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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.