Finding the Fourth Proportional to 138,427.44, 207,575.52 and 71,800.92
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Solution
The fourth proportional to 138,427.44, 207,575.52 and 71,800.92 is: 107,667.33
Step by Step Solution
- Step 1: Write the proportion equation
138,427.44 : 207,575.52 = 71,800.92 : x - Step 2: Convert to fraction form
138,427.44/207,575.52 = 71,800.92/x - Step 3: Cross multiply
138,427.44x = 207,575.52 × 71,800.92 - Step 4: Simplify right side
138,427.44x = 14,904,113,305.48 - Step 5: Solve for x
x = 14,904,113,305.48/138,427.44 - Step 6: Final answer
x = 107,667.33
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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.