Finding the Fourth Proportional to 122,518.60, 183,680.70 and 67,114.60
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Solution
The fourth proportional to 122,518.60, 183,680.70 and 67,114.60 is: 100,618.65
Step by Step Solution
- Step 1: Write the proportion equation
122,518.60 : 183,680.70 = 67,114.60 : x - Step 2: Convert to fraction form
122,518.60/183,680.70 = 67,114.60/x - Step 3: Cross multiply
122,518.60x = 183,680.70 × 67,114.60 - Step 4: Simplify right side
122,518.60x = 12,327,656,708.22 - Step 5: Solve for x
x = 12,327,656,708.22/122,518.60 - Step 6: Final answer
x = 100,618.65
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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.