Finding the Fourth Proportional to 115,467.70, 173,201.55 and 92,139.70
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Solution
The fourth proportional to 115,467.70, 173,201.55 and 92,139.70 is: 138,209.55
Step by Step Solution
- Step 1: Write the proportion equation
115,467.70 : 173,201.55 = 92,139.70 : x - Step 2: Convert to fraction form
115,467.70/173,201.55 = 92,139.70/x - Step 3: Cross multiply
115,467.70x = 173,201.55 × 92,139.70 - Step 4: Simplify right side
115,467.70x = 15,958,738,856.54 - Step 5: Solve for x
x = 15,958,738,856.54/115,467.70 - Step 6: Final answer
x = 138,209.55
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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.