Finding the Fourth Proportional to 149,896.23, 206,857.41 and 81,913.02
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Solution
The fourth proportional to 149,896.23, 206,857.41 and 81,913.02 is: 113,040.30
Step by Step Solution
- Step 1: Write the proportion equation
149,896.23 : 206,857.41 = 81,913.02 : x - Step 2: Convert to fraction form
149,896.23/206,857.41 = 81,913.02/x - Step 3: Cross multiply
149,896.23x = 206,857.41 × 81,913.02 - Step 4: Simplify right side
149,896.23x = 16,944,315,162.48 - Step 5: Solve for x
x = 16,944,315,162.48/149,896.23 - Step 6: Final answer
x = 113,040.30
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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.