Finding the Fourth Proportional to 137,284.62, 189,450.36 and 76,029.54
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Solution
The fourth proportional to 137,284.62, 189,450.36 and 76,029.54 is: 104,919.43
Step by Step Solution
- Step 1: Write the proportion equation
137,284.62 : 189,450.36 = 76,029.54 : x - Step 2: Convert to fraction form
137,284.62/189,450.36 = 76,029.54/x - Step 3: Cross multiply
137,284.62x = 189,450.36 × 76,029.54 - Step 4: Simplify right side
137,284.62x = 14,403,823,723.63 - Step 5: Solve for x
x = 14,403,823,723.63/137,284.62 - Step 6: Final answer
x = 104,919.43
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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.