Finding the Fourth Proportional to 192,781.05, 289,124.99 and 74,376.87
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Solution
The fourth proportional to 192,781.05, 289,124.99 and 74,376.87 is: 111,547.33
Step by Step Solution
- Step 1: Write the proportion equation
192,781.05 : 289,124.99 = 74,376.87 : x - Step 2: Convert to fraction form
192,781.05/289,124.99 = 74,376.87/x - Step 3: Cross multiply
192,781.05x = 289,124.99 × 74,376.87 - Step 4: Simplify right side
192,781.05x = 21,504,211,794.98 - Step 5: Solve for x
x = 21,504,211,794.98/192,781.05 - Step 6: Final answer
x = 111,547.33
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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.