Finding the Fourth Proportional to 115,925.81, 173,771.08 and 65,902.55
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Solution
The fourth proportional to 115,925.81, 173,771.08 and 65,902.55 is: 98,786.95
Step by Step Solution
- Step 1: Write the proportion equation
115,925.81 : 173,771.08 = 65,902.55 : x - Step 2: Convert to fraction form
115,925.81/173,771.08 = 65,902.55/x - Step 3: Cross multiply
115,925.81x = 173,771.08 × 65,902.55 - Step 4: Simplify right side
115,925.81x = 11,451,957,288.25 - Step 5: Solve for x
x = 11,451,957,288.25/115,925.81 - Step 6: Final answer
x = 98,786.95
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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.