Finding the Fourth Proportional to 108,319.88, 161,760.09 and 107,147.00
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Solution
The fourth proportional to 108,319.88, 161,760.09 and 107,147.00 is: 160,008.56
Step by Step Solution
- Step 1: Write the proportion equation
108,319.88 : 161,760.09 = 107,147.00 : x - Step 2: Convert to fraction form
108,319.88/161,760.09 = 107,147.00/x - Step 3: Cross multiply
108,319.88x = 161,760.09 × 107,147.00 - Step 4: Simplify right side
108,319.88x = 17,332,108,566.73 - Step 5: Solve for x
x = 17,332,108,566.73/108,319.88 - Step 6: Final answer
x = 160,008.56
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.