Finding the Fourth Proportional to 190,021.55, 262,115.49 and 125,491.38
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Solution
The fourth proportional to 190,021.55, 262,115.49 and 125,491.38 is: 173,102.66
Step by Step Solution
- Step 1: Write the proportion equation
190,021.55 : 262,115.49 = 125,491.38 : x - Step 2: Convert to fraction form
190,021.55/262,115.49 = 125,491.38/x - Step 3: Cross multiply
190,021.55x = 262,115.49 × 125,491.38 - Step 4: Simplify right side
190,021.55x = 32,893,234,559.48 - Step 5: Solve for x
x = 32,893,234,559.48/190,021.55 - Step 6: Final answer
x = 173,102.66
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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.