Finding the Fourth Proportional to 83,744.80, 125,422.80 and 81,800.80
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Solution
The fourth proportional to 83,744.80, 125,422.80 and 81,800.80 is: 122,511.31
Step by Step Solution
- Step 1: Write the proportion equation
83,744.80 : 125,422.80 = 81,800.80 : x - Step 2: Convert to fraction form
83,744.80/125,422.80 = 81,800.80/x - Step 3: Cross multiply
83,744.80x = 125,422.80 × 81,800.80 - Step 4: Simplify right side
83,744.80x = 10,259,685,378.24 - Step 5: Solve for x
x = 10,259,685,378.24/83,744.80 - Step 6: Final answer
x = 122,511.31
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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.