Finding the Fourth Proportional to 122,350.21, 168,851.04 and 68,638.70
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Solution
The fourth proportional to 122,350.21, 168,851.04 and 68,638.70 is: 94,725.76
Step by Step Solution
- Step 1: Write the proportion equation
122,350.21 : 168,851.04 = 68,638.70 : x - Step 2: Convert to fraction form
122,350.21/168,851.04 = 68,638.70/x - Step 3: Cross multiply
122,350.21x = 168,851.04 × 68,638.70 - Step 4: Simplify right side
122,350.21x = 11,589,715,879.25 - Step 5: Solve for x
x = 11,589,715,879.25/122,350.21 - Step 6: Final answer
x = 94,725.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.