Finding the Fourth Proportional to 125,629.80, 188,444.70 and 51,757.80
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Solution
The fourth proportional to 125,629.80, 188,444.70 and 51,757.80 is: 77,636.70
Step by Step Solution
- Step 1: Write the proportion equation
125,629.80 : 188,444.70 = 51,757.80 : x - Step 2: Convert to fraction form
125,629.80/188,444.70 = 51,757.80/x - Step 3: Cross multiply
125,629.80x = 188,444.70 × 51,757.80 - Step 4: Simplify right side
125,629.80x = 9,753,483,093.66 - Step 5: Solve for x
x = 9,753,483,093.66/125,629.80 - Step 6: Final answer
x = 77,636.70
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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.