Finding the Fourth Proportional to 155,707.65, 214,876.56 and 84,087.67
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Solution
The fourth proportional to 155,707.65, 214,876.56 and 84,087.67 is: 116,040.99
Step by Step Solution
- Step 1: Write the proportion equation
155,707.65 : 214,876.56 = 84,087.67 : x - Step 2: Convert to fraction form
155,707.65/214,876.56 = 84,087.67/x - Step 3: Cross multiply
155,707.65x = 214,876.56 × 84,087.67 - Step 4: Simplify right side
155,707.65x = 18,068,469,268.02 - Step 5: Solve for x
x = 18,068,469,268.02/155,707.65 - Step 6: Final answer
x = 116,040.99
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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.