Finding the Fourth Proportional to 170,286.14, 234,958.92 and 98,661.80
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Solution
The fourth proportional to 170,286.14, 234,958.92 and 98,661.80 is: 136,132.45
Step by Step Solution
- Step 1: Write the proportion equation
170,286.14 : 234,958.92 = 98,661.80 : x - Step 2: Convert to fraction form
170,286.14/234,958.92 = 98,661.80/x - Step 3: Cross multiply
170,286.14x = 234,958.92 × 98,661.80 - Step 4: Simplify right side
170,286.14x = 23,181,469,973.26 - Step 5: Solve for x
x = 23,181,469,973.26/170,286.14 - Step 6: Final answer
x = 136,132.45
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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.