Finding the Fourth Proportional to 125,857.40, 188,654.87 and 51,029.19
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Solution
The fourth proportional to 125,857.40, 188,654.87 and 51,029.19 is: 76,490.58
Step by Step Solution
- Step 1: Write the proportion equation
125,857.40 : 188,654.87 = 51,029.19 : x - Step 2: Convert to fraction form
125,857.40/188,654.87 = 51,029.19/x - Step 3: Cross multiply
125,857.40x = 188,654.87 × 51,029.19 - Step 4: Simplify right side
125,857.40x = 9,626,905,333.23 - Step 5: Solve for x
x = 9,626,905,333.23/125,857.40 - Step 6: Final answer
x = 76,490.58
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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.