Finding the Fourth Proportional to 83,937.66, 125,906.55 and 80,293.26
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Solution
The fourth proportional to 83,937.66, 125,906.55 and 80,293.26 is: 120,439.95
Step by Step Solution
- Step 1: Write the proportion equation
83,937.66 : 125,906.55 = 80,293.26 : x - Step 2: Convert to fraction form
83,937.66/125,906.55 = 80,293.26/x - Step 3: Cross multiply
83,937.66x = 125,906.55 × 80,293.26 - Step 4: Simplify right side
83,937.66x = 10,109,447,354.85 - Step 5: Solve for x
x = 10,109,447,354.85/83,937.66 - Step 6: Final answer
x = 120,439.95
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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.