Finding the Fourth Proportional to 125,949.68, 173,804.28 and 81,237.68
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Solution
The fourth proportional to 125,949.68, 173,804.28 and 81,237.68 is: 112,103.95
Step by Step Solution
- Step 1: Write the proportion equation
125,949.68 : 173,804.28 = 81,237.68 : x - Step 2: Convert to fraction form
125,949.68/173,804.28 = 81,237.68/x - Step 3: Cross multiply
125,949.68x = 173,804.28 × 81,237.68 - Step 4: Simplify right side
125,949.68x = 14,119,456,481.27 - Step 5: Solve for x
x = 14,119,456,481.27/125,949.68 - Step 6: Final answer
x = 112,103.95
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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.