Finding the Fourth Proportional to 122,469.36, 168,996.06 and 68,742.06
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Solution
The fourth proportional to 122,469.36, 168,996.06 and 68,742.06 is: 94,857.50
Step by Step Solution
- Step 1: Write the proportion equation
122,469.36 : 168,996.06 = 68,742.06 : x - Step 2: Convert to fraction form
122,469.36/168,996.06 = 68,742.06/x - Step 3: Cross multiply
122,469.36x = 168,996.06 × 68,742.06 - Step 4: Simplify right side
122,469.36x = 11,617,137,296.28 - Step 5: Solve for x
x = 11,617,137,296.28/122,469.36 - Step 6: Final answer
x = 94,857.50
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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.