Finding the Fourth Proportional to 155,754.09, 214,940.51 and 84,134.09
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Solution
The fourth proportional to 155,754.09, 214,940.51 and 84,134.09 is: 116,104.97
Step by Step Solution
- Step 1: Write the proportion equation
155,754.09 : 214,940.51 = 84,134.09 : x - Step 2: Convert to fraction form
155,754.09/214,940.51 = 84,134.09/x - Step 3: Cross multiply
155,754.09x = 214,940.51 × 84,134.09 - Step 4: Simplify right side
155,754.09x = 18,083,824,212.99 - Step 5: Solve for x
x = 18,083,824,212.99/155,754.09 - Step 6: Final answer
x = 116,104.97
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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.