Finding the Fourth Proportional to 122,360.22, 168,860.70 and 68,644.46
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Solution
The fourth proportional to 122,360.22, 168,860.70 and 68,644.46 is: 94,731.38
Step by Step Solution
- Step 1: Write the proportion equation
122,360.22 : 168,860.70 = 68,644.46 : x - Step 2: Convert to fraction form
122,360.22/168,860.70 = 68,644.46/x - Step 3: Cross multiply
122,360.22x = 168,860.70 × 68,644.46 - Step 4: Simplify right side
122,360.22x = 11,591,351,988.87 - Step 5: Solve for x
x = 11,591,351,988.87/122,360.22 - Step 6: Final answer
x = 94,731.38
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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.