Finding the Fourth Proportional to 138,045.32, 207,027.96 and 53,786.70
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Solution
The fourth proportional to 138,045.32, 207,027.96 and 53,786.70 is: 80,664.46
Step by Step Solution
- Step 1: Write the proportion equation
138,045.32 : 207,027.96 = 53,786.70 : x - Step 2: Convert to fraction form
138,045.32/207,027.96 = 53,786.70/x - Step 3: Cross multiply
138,045.32x = 207,027.96 × 53,786.70 - Step 4: Simplify right side
138,045.32x = 11,135,350,776.13 - Step 5: Solve for x
x = 11,135,350,776.13/138,045.32 - Step 6: Final answer
x = 80,664.46
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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.