Finding the Fourth Proportional to 149,083.13, 206,029.91 and 122,183.21
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Solution
The fourth proportional to 149,083.13, 206,029.91 and 122,183.21 is: 168,854.75
Step by Step Solution
- Step 1: Write the proportion equation
149,083.13 : 206,029.91 = 122,183.21 : x - Step 2: Convert to fraction form
149,083.13/206,029.91 = 122,183.21/x - Step 3: Cross multiply
149,083.13x = 206,029.91 × 122,183.21 - Step 4: Simplify right side
149,083.13x = 25,173,395,148.90 - Step 5: Solve for x
x = 25,173,395,148.90/149,083.13 - Step 6: Final answer
x = 168,854.75
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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.