Finding the Fourth Proportional to 126,983.44, 175,201.68 and 100,042.32
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Solution
The fourth proportional to 126,983.44, 175,201.68 and 100,042.32 is: 138,030.46
Step by Step Solution
- Step 1: Write the proportion equation
126,983.44 : 175,201.68 = 100,042.32 : x - Step 2: Convert to fraction form
126,983.44/175,201.68 = 100,042.32/x - Step 3: Cross multiply
126,983.44x = 175,201.68 × 100,042.32 - Step 4: Simplify right side
126,983.44x = 17,527,582,535.10 - Step 5: Solve for x
x = 17,527,582,535.10/126,983.44 - Step 6: Final answer
x = 138,030.46
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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.