Finding the Fourth Proportional to 137,584.71, 189,609.81 and 107,322.09
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Solution
The fourth proportional to 137,584.71, 189,609.81 and 107,322.09 is: 147,903.94
Step by Step Solution
- Step 1: Write the proportion equation
137,584.71 : 189,609.81 = 107,322.09 : x - Step 2: Convert to fraction form
137,584.71/189,609.81 = 107,322.09/x - Step 3: Cross multiply
137,584.71x = 189,609.81 × 107,322.09 - Step 4: Simplify right side
137,584.71x = 20,349,321,093.70 - Step 5: Solve for x
x = 20,349,321,093.70/137,584.71 - Step 6: Final answer
x = 147,903.94
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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.