Finding the Fourth Proportional to 116,568.88, 174,944.80 and 81,278.80
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Solution
The fourth proportional to 116,568.88, 174,944.80 and 81,278.80 is: 121,981.99
Step by Step Solution
- Step 1: Write the proportion equation
116,568.88 : 174,944.80 = 81,278.80 : x - Step 2: Convert to fraction form
116,568.88/174,944.80 = 81,278.80/x - Step 3: Cross multiply
116,568.88x = 174,944.80 × 81,278.80 - Step 4: Simplify right side
116,568.88x = 14,219,303,410.24 - Step 5: Solve for x
x = 14,219,303,410.24/116,568.88 - Step 6: Final answer
x = 121,981.99
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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.