Finding the Fourth Proportional to 159,568.38, 220,201.74 and 87,955.07
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Solution
The fourth proportional to 159,568.38, 220,201.74 and 87,955.07 is: 121,376.54
Step by Step Solution
- Step 1: Write the proportion equation
159,568.38 : 220,201.74 = 87,955.07 : x - Step 2: Convert to fraction form
159,568.38/220,201.74 = 87,955.07/x - Step 3: Cross multiply
159,568.38x = 220,201.74 × 87,955.07 - Step 4: Simplify right side
159,568.38x = 19,367,858,354.81 - Step 5: Solve for x
x = 19,367,858,354.81/159,568.38 - Step 6: Final answer
x = 121,376.54
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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.