Finding the Fourth Proportional to 159,214.78, 219,716.38 and 87,593.26
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Solution
The fourth proportional to 159,214.78, 219,716.38 and 87,593.26 is: 120,878.69
Step by Step Solution
- Step 1: Write the proportion equation
159,214.78 : 219,716.38 = 87,593.26 : x - Step 2: Convert to fraction form
159,214.78/219,716.38 = 87,593.26/x - Step 3: Cross multiply
159,214.78x = 219,716.38 × 87,593.26 - Step 4: Simplify right side
159,214.78x = 19,245,673,450.31 - Step 5: Solve for x
x = 19,245,673,450.31/159,214.78 - Step 6: Final answer
x = 120,878.69
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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.