Finding the Fourth Proportional to 122,207.20, 183,456.60 and 68,941.60
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Solution
The fourth proportional to 122,207.20, 183,456.60 and 68,941.60 is: 103,494.65
Step by Step Solution
- Step 1: Write the proportion equation
122,207.20 : 183,456.60 = 68,941.60 : x - Step 2: Convert to fraction form
122,207.20/183,456.60 = 68,941.60/x - Step 3: Cross multiply
122,207.20x = 183,456.60 × 68,941.60 - Step 4: Simplify right side
122,207.20x = 12,647,791,534.56 - Step 5: Solve for x
x = 12,647,791,534.56/122,207.20 - Step 6: Final answer
x = 103,494.65
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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.