Finding the Fourth Proportional to 119,854.21, 165,348.49 and 84,067.60
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Solution
The fourth proportional to 119,854.21, 165,348.49 and 84,067.60 is: 115,977.99
Step by Step Solution
- Step 1: Write the proportion equation
119,854.21 : 165,348.49 = 84,067.60 : x - Step 2: Convert to fraction form
119,854.21/165,348.49 = 84,067.60/x - Step 3: Cross multiply
119,854.21x = 165,348.49 × 84,067.60 - Step 4: Simplify right side
119,854.21x = 13,900,450,717.92 - Step 5: Solve for x
x = 13,900,450,717.92/119,854.21 - Step 6: Final answer
x = 115,977.99
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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.