Finding the Fourth Proportional to 155,795.67, 214,998.12 and 84,175.68
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Solution
The fourth proportional to 155,795.67, 214,998.12 and 84,175.68 is: 116,162.49
Step by Step Solution
- Step 1: Write the proportion equation
155,795.67 : 214,998.12 = 84,175.68 : x - Step 2: Convert to fraction form
155,795.67/214,998.12 = 84,175.68/x - Step 3: Cross multiply
155,795.67x = 214,998.12 × 84,175.68 - Step 4: Simplify right side
155,795.67x = 18,097,612,949.72 - Step 5: Solve for x
x = 18,097,612,949.72/155,795.67 - Step 6: Final answer
x = 116,162.49
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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.