Finding the Fourth Proportional to 138,040.26, 207,064.97 and 38,192.07
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Solution
The fourth proportional to 138,040.26, 207,064.97 and 38,192.07 is: 57,289.37
Step by Step Solution
- Step 1: Write the proportion equation
138,040.26 : 207,064.97 = 38,192.07 : x - Step 2: Convert to fraction form
138,040.26/207,064.97 = 38,192.07/x - Step 3: Cross multiply
138,040.26x = 207,064.97 × 38,192.07 - Step 4: Simplify right side
138,040.26x = 7,908,239,828.79 - Step 5: Solve for x
x = 7,908,239,828.79/138,040.26 - Step 6: Final answer
x = 57,289.37
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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.