Finding the Fourth Proportional to 167,765.91, 231,509.97 and 91,285.31
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Solution
The fourth proportional to 167,765.91, 231,509.97 and 91,285.31 is: 125,969.92
Step by Step Solution
- Step 1: Write the proportion equation
167,765.91 : 231,509.97 = 91,285.31 : x - Step 2: Convert to fraction form
167,765.91/231,509.97 = 91,285.31/x - Step 3: Cross multiply
167,765.91x = 231,509.97 × 91,285.31 - Step 4: Simplify right side
167,765.91x = 21,133,458,221.99 - Step 5: Solve for x
x = 21,133,458,221.99/167,765.91 - Step 6: Final answer
x = 125,969.92
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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.