Finding the Fourth Proportional to 106,021.43, 159,032.01 and 27,135.68
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Solution
The fourth proportional to 106,021.43, 159,032.01 and 27,135.68 is: 40,703.49
Step by Step Solution
- Step 1: Write the proportion equation
106,021.43 : 159,032.01 = 27,135.68 : x - Step 2: Convert to fraction form
106,021.43/159,032.01 = 27,135.68/x - Step 3: Cross multiply
106,021.43x = 159,032.01 × 27,135.68 - Step 4: Simplify right side
106,021.43x = 4,315,441,733.12 - Step 5: Solve for x
x = 4,315,441,733.12/106,021.43 - Step 6: Final answer
x = 40,703.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.