Finding the Fourth Proportional to 109,694.09, 151,392.88 and 63,126.00
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Solution
The fourth proportional to 109,694.09, 151,392.88 and 63,126.00 is: 87,122.52
Step by Step Solution
- Step 1: Write the proportion equation
109,694.09 : 151,392.88 = 63,126.00 : x - Step 2: Convert to fraction form
109,694.09/151,392.88 = 63,126.00/x - Step 3: Cross multiply
109,694.09x = 151,392.88 × 63,126.00 - Step 4: Simplify right side
109,694.09x = 9,556,826,050.21 - Step 5: Solve for x
x = 9,556,826,050.21/109,694.09 - Step 6: Final answer
x = 87,122.52
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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.