Finding the Fourth Proportional to 125,499.91, 173,188.86 and 68,138.09
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Solution
The fourth proportional to 125,499.91, 173,188.86 and 68,138.09 is: 94,030.01
Step by Step Solution
- Step 1: Write the proportion equation
125,499.91 : 173,188.86 = 68,138.09 : x - Step 2: Convert to fraction form
125,499.91/173,188.86 = 68,138.09/x - Step 3: Cross multiply
125,499.91x = 173,188.86 × 68,138.09 - Step 4: Simplify right side
125,499.91x = 11,800,757,788.99 - Step 5: Solve for x
x = 11,800,757,788.99/125,499.91 - Step 6: Final answer
x = 94,030.01
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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.