Finding the Fourth Proportional to 113,803.97, 157,037.29 and 65,396.09
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Solution
The fourth proportional to 113,803.97, 157,037.29 and 65,396.09 is: 90,239.61
Step by Step Solution
- Step 1: Write the proportion equation
113,803.97 : 157,037.29 = 65,396.09 : x - Step 2: Convert to fraction form
113,803.97/157,037.29 = 65,396.09/x - Step 3: Cross multiply
113,803.97x = 157,037.29 × 65,396.09 - Step 4: Simplify right side
113,803.97x = 10,269,624,979.30 - Step 5: Solve for x
x = 10,269,624,979.30/113,803.97 - Step 6: Final answer
x = 90,239.61
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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.