Finding the Fourth Proportional to 154,765.37, 213,585.10 and 86,804.14
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Solution
The fourth proportional to 154,765.37, 213,585.10 and 86,804.14 is: 119,794.70
Step by Step Solution
- Step 1: Write the proportion equation
154,765.37 : 213,585.10 = 86,804.14 : x - Step 2: Convert to fraction form
154,765.37/213,585.10 = 86,804.14/x - Step 3: Cross multiply
154,765.37x = 213,585.10 × 86,804.14 - Step 4: Simplify right side
154,765.37x = 18,540,070,922.31 - Step 5: Solve for x
x = 18,540,070,922.31/154,765.37 - Step 6: Final answer
x = 119,794.70
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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.