Finding the Fourth Proportional to 155,716.74, 214,889.09 and 84,096.77
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Solution
The fourth proportional to 155,716.74, 214,889.09 and 84,096.77 is: 116,053.53
Step by Step Solution
- Step 1: Write the proportion equation
155,716.74 : 214,889.09 = 84,096.77 : x - Step 2: Convert to fraction form
155,716.74/214,889.09 = 84,096.77/x - Step 3: Cross multiply
155,716.74x = 214,889.09 × 84,096.77 - Step 4: Simplify right side
155,716.74x = 18,071,476,882.31 - Step 5: Solve for x
x = 18,071,476,882.31/155,716.74 - Step 6: Final answer
x = 116,053.53
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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.