Finding the Fourth Proportional to 122,009.90, 168,365.74 and 68,294.44
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Solution
The fourth proportional to 122,009.90, 168,365.74 and 68,294.44 is: 94,241.90
Step by Step Solution
- Step 1: Write the proportion equation
122,009.90 : 168,365.74 = 68,294.44 : x - Step 2: Convert to fraction form
122,009.90/168,365.74 = 68,294.44/x - Step 3: Cross multiply
122,009.90x = 168,365.74 × 68,294.44 - Step 4: Simplify right side
122,009.90x = 11,498,444,096.26 - Step 5: Solve for x
x = 11,498,444,096.26/122,009.90 - Step 6: Final answer
x = 94,241.90
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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.