Finding the Fourth Proportional to 122,042.19, 168,418.64 and 68,327.31
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Solution
The fourth proportional to 122,042.19, 168,418.64 and 68,327.31 is: 94,291.92
Step by Step Solution
- Step 1: Write the proportion equation
122,042.19 : 168,418.64 = 68,327.31 : x - Step 2: Convert to fraction form
122,042.19/168,418.64 = 68,327.31/x - Step 3: Cross multiply
122,042.19x = 168,418.64 × 68,327.31 - Step 4: Simplify right side
122,042.19x = 11,507,592,283.42 - Step 5: Solve for x
x = 11,507,592,283.42/122,042.19 - Step 6: Final answer
x = 94,291.92
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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.