Finding the Fourth Proportional to 150,143.61, 207,194.99 and 82,160.31
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Solution
The fourth proportional to 150,143.61, 207,194.99 and 82,160.31 is: 113,379.48
Step by Step Solution
- Step 1: Write the proportion equation
150,143.61 : 207,194.99 = 82,160.31 : x - Step 2: Convert to fraction form
150,143.61/207,194.99 = 82,160.31/x - Step 3: Cross multiply
150,143.61x = 207,194.99 × 82,160.31 - Step 4: Simplify right side
150,143.61x = 17,023,204,198.05 - Step 5: Solve for x
x = 17,023,204,198.05/150,143.61 - Step 6: Final answer
x = 113,379.48
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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.