Finding the Fourth Proportional to 170,107.28, 234,707.99 and 142,986.45
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Solution
The fourth proportional to 170,107.28, 234,707.99 and 142,986.45 is: 197,287.63
Step by Step Solution
- Step 1: Write the proportion equation
170,107.28 : 234,707.99 = 142,986.45 : x - Step 2: Convert to fraction form
170,107.28/234,707.99 = 142,986.45/x - Step 3: Cross multiply
170,107.28x = 234,707.99 × 142,986.45 - Step 4: Simplify right side
170,107.28x = 33,560,062,276.74 - Step 5: Solve for x
x = 33,560,062,276.74/170,107.28 - Step 6: Final answer
x = 197,287.63
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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.