Finding the Fourth Proportional to 119,920.05, 165,490.26 and 66,204.09
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Solution
The fourth proportional to 119,920.05, 165,490.26 and 66,204.09 is: 91,361.97
Step by Step Solution
- Step 1: Write the proportion equation
119,920.05 : 165,490.26 = 66,204.09 : x - Step 2: Convert to fraction form
119,920.05/165,490.26 = 66,204.09/x - Step 3: Cross multiply
119,920.05x = 165,490.26 × 66,204.09 - Step 4: Simplify right side
119,920.05x = 10,956,132,067.16 - Step 5: Solve for x
x = 10,956,132,067.16/119,920.05 - Step 6: Final answer
x = 91,361.97
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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.