Finding the Fourth Proportional to 117,121.74, 175,857.57 and 115,372.14
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Solution
The fourth proportional to 117,121.74, 175,857.57 and 115,372.14 is: 173,230.56
Step by Step Solution
- Step 1: Write the proportion equation
117,121.74 : 175,857.57 = 115,372.14 : x - Step 2: Convert to fraction form
117,121.74/175,857.57 = 115,372.14/x - Step 3: Cross multiply
117,121.74x = 175,857.57 × 115,372.14 - Step 4: Simplify right side
117,121.74x = 20,289,064,186.10 - Step 5: Solve for x
x = 20,289,064,186.10/117,121.74 - Step 6: Final answer
x = 173,230.56
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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.