Finding the Fourth Proportional to 122,188.26, 168,621.84 and 68,485.26
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Solution
The fourth proportional to 122,188.26, 168,621.84 and 68,485.26 is: 94,510.80
Step by Step Solution
- Step 1: Write the proportion equation
122,188.26 : 168,621.84 = 68,485.26 : x - Step 2: Convert to fraction form
122,188.26/168,621.84 = 68,485.26/x - Step 3: Cross multiply
122,188.26x = 168,621.84 × 68,485.26 - Step 4: Simplify right side
122,188.26x = 11,548,110,554.08 - Step 5: Solve for x
x = 11,548,110,554.08/122,188.26 - Step 6: Final answer
x = 94,510.80
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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.