Finding the Fourth Proportional to 154,735.68, 213,544.26 and 86,749.32
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Solution
The fourth proportional to 154,735.68, 213,544.26 and 86,749.32 is: 119,719.12
Step by Step Solution
- Step 1: Write the proportion equation
154,735.68 : 213,544.26 = 86,749.32 : x - Step 2: Convert to fraction form
154,735.68/213,544.26 = 86,749.32/x - Step 3: Cross multiply
154,735.68x = 213,544.26 × 86,749.32 - Step 4: Simplify right side
154,735.68x = 18,524,819,344.90 - Step 5: Solve for x
x = 18,524,819,344.90/154,735.68 - Step 6: Final answer
x = 119,719.12
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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.