Finding the Fourth Proportional to 115,027.28, 157,889.48 and 102,170.96
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Solution
The fourth proportional to 115,027.28, 157,889.48 and 102,170.96 is: 140,242.56
Step by Step Solution
- Step 1: Write the proportion equation
115,027.28 : 157,889.48 = 102,170.96 : x - Step 2: Convert to fraction form
115,027.28/157,889.48 = 102,170.96/x - Step 3: Cross multiply
115,027.28x = 157,889.48 × 102,170.96 - Step 4: Simplify right side
115,027.28x = 16,131,719,745.50 - Step 5: Solve for x
x = 16,131,719,745.50/115,027.28 - Step 6: Final answer
x = 140,242.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.