Finding the Fourth Proportional to 125,815.20, 173,621.79 and 68,452.08
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Solution
The fourth proportional to 125,815.20, 173,621.79 and 68,452.08 is: 94,462.14
Step by Step Solution
- Step 1: Write the proportion equation
125,815.20 : 173,621.79 = 68,452.08 : x - Step 2: Convert to fraction form
125,815.20/173,621.79 = 68,452.08/x - Step 3: Cross multiply
125,815.20x = 173,621.79 × 68,452.08 - Step 4: Simplify right side
125,815.20x = 11,884,772,658.82 - Step 5: Solve for x
x = 11,884,772,658.82/125,815.20 - Step 6: Final answer
x = 94,462.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.