Finding the Fourth Proportional to 146,790.40, 202,270.08 and 121,388.80
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Solution
The fourth proportional to 146,790.40, 202,270.08 and 121,388.80 is: 167,267.90
Step by Step Solution
- Step 1: Write the proportion equation
146,790.40 : 202,270.08 = 121,388.80 : x - Step 2: Convert to fraction form
146,790.40/202,270.08 = 121,388.80/x - Step 3: Cross multiply
146,790.40x = 202,270.08 × 121,388.80 - Step 4: Simplify right side
146,790.40x = 24,553,322,287.10 - Step 5: Solve for x
x = 24,553,322,287.10/146,790.40 - Step 6: Final answer
x = 167,267.90
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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.