Finding the Fourth Proportional to 159,201.14, 219,699.39 and 91,216.75
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Solution
The fourth proportional to 159,201.14, 219,699.39 and 91,216.75 is: 125,880.15
Step by Step Solution
- Step 1: Write the proportion equation
159,201.14 : 219,699.39 = 91,216.75 : x - Step 2: Convert to fraction form
159,201.14/219,699.39 = 91,216.75/x - Step 3: Cross multiply
159,201.14x = 219,699.39 × 91,216.75 - Step 4: Simplify right side
159,201.14x = 20,040,263,732.96 - Step 5: Solve for x
x = 20,040,263,732.96/159,201.14 - Step 6: Final answer
x = 125,880.15
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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.