Finding the Fourth Proportional to 119,021.74, 178,408.07 and 40,108.70
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Solution
The fourth proportional to 119,021.74, 178,408.07 and 40,108.70 is: 60,121.09
Step by Step Solution
- Step 1: Write the proportion equation
119,021.74 : 178,408.07 = 40,108.70 : x - Step 2: Convert to fraction form
119,021.74/178,408.07 = 40,108.70/x - Step 3: Cross multiply
119,021.74x = 178,408.07 × 40,108.70 - Step 4: Simplify right side
119,021.74x = 7,155,716,153.09 - Step 5: Solve for x
x = 7,155,716,153.09/119,021.74 - Step 6: Final answer
x = 60,121.09
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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.