Finding the Fourth Proportional to 107,939.14, 161,908.70 and 29,051.31
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Solution
The fourth proportional to 107,939.14, 161,908.70 and 29,051.31 is: 43,576.96
Step by Step Solution
- Step 1: Write the proportion equation
107,939.14 : 161,908.70 = 29,051.31 : x - Step 2: Convert to fraction form
107,939.14/161,908.70 = 29,051.31/x - Step 3: Cross multiply
107,939.14x = 161,908.70 × 29,051.31 - Step 4: Simplify right side
107,939.14x = 4,703,659,835.40 - Step 5: Solve for x
x = 4,703,659,835.40/107,939.14 - Step 6: Final answer
x = 43,576.96
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1.5x scale
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.