Finding the Fourth Proportional to 127,175.70, 190,793.94 and 38,430.09
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Solution
The fourth proportional to 127,175.70, 190,793.94 and 38,430.09 is: 57,654.32
Step by Step Solution
- Step 1: Write the proportion equation
127,175.70 : 190,793.94 = 38,430.09 : x - Step 2: Convert to fraction form
127,175.70/190,793.94 = 38,430.09/x - Step 3: Cross multiply
127,175.70x = 190,793.94 × 38,430.09 - Step 4: Simplify right side
127,175.70x = 7,332,228,285.65 - Step 5: Solve for x
x = 7,332,228,285.65/127,175.70 - Step 6: Final answer
x = 57,654.32
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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.