Finding the Fourth Proportional to 145,949.32, 201,409.76 and 82,286.68
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Solution
The fourth proportional to 145,949.32, 201,409.76 and 82,286.68 is: 113,555.45
Step by Step Solution
- Step 1: Write the proportion equation
145,949.32 : 201,409.76 = 82,286.68 : x - Step 2: Convert to fraction form
145,949.32/201,409.76 = 82,286.68/x - Step 3: Cross multiply
145,949.32x = 201,409.76 × 82,286.68 - Step 4: Simplify right side
145,949.32x = 16,573,340,470.00 - Step 5: Solve for x
x = 16,573,340,470.00/145,949.32 - Step 6: Final answer
x = 113,555.45
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1.5x scale
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.