Finding the Fourth Proportional to 100,260.63, 138,346.52 and 59,959.69
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Solution
The fourth proportional to 100,260.63, 138,346.52 and 59,959.69 is: 82,736.50
Step by Step Solution
- Step 1: Write the proportion equation
100,260.63 : 138,346.52 = 59,959.69 : x - Step 2: Convert to fraction form
100,260.63/138,346.52 = 59,959.69/x - Step 3: Cross multiply
100,260.63x = 138,346.52 × 59,959.69 - Step 4: Simplify right side
100,260.63x = 8,295,213,460.25 - Step 5: Solve for x
x = 8,295,213,460.25/100,260.63 - Step 6: Final answer
x = 82,736.50
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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.