Finding the Fourth Proportional to 121,626.80, 182,440.20 and 116,961.20
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Solution
The fourth proportional to 121,626.80, 182,440.20 and 116,961.20 is: 175,441.80
Step by Step Solution
- Step 1: Write the proportion equation
121,626.80 : 182,440.20 = 116,961.20 : x - Step 2: Convert to fraction form
121,626.80/182,440.20 = 116,961.20/x - Step 3: Cross multiply
121,626.80x = 182,440.20 × 116,961.20 - Step 4: Simplify right side
121,626.80x = 21,338,424,720.24 - Step 5: Solve for x
x = 21,338,424,720.24/121,626.80 - Step 6: Final answer
x = 175,441.80
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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.