Finding the Fourth Proportional to 122,349.71, 168,850.35 and 68,638.20
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Solution
The fourth proportional to 122,349.71, 168,850.35 and 68,638.20 is: 94,725.07
Step by Step Solution
- Step 1: Write the proportion equation
122,349.71 : 168,850.35 = 68,638.20 : x - Step 2: Convert to fraction form
122,349.71/168,850.35 = 68,638.20/x - Step 3: Cross multiply
122,349.71x = 168,850.35 × 68,638.20 - Step 4: Simplify right side
122,349.71x = 11,589,584,093.37 - Step 5: Solve for x
x = 11,589,584,093.37/122,349.71 - Step 6: Final answer
x = 94,725.07
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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.