Finding the Fourth Proportional to 129,877.56, 194,816.34 and 106,257.96
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Solution
The fourth proportional to 129,877.56, 194,816.34 and 106,257.96 is: 159,386.94
Step by Step Solution
- Step 1: Write the proportion equation
129,877.56 : 194,816.34 = 106,257.96 : x - Step 2: Convert to fraction form
129,877.56/194,816.34 = 106,257.96/x - Step 3: Cross multiply
129,877.56x = 194,816.34 × 106,257.96 - Step 4: Simplify right side
129,877.56x = 20,700,786,863.07 - Step 5: Solve for x
x = 20,700,786,863.07/129,877.56 - Step 6: Final answer
x = 159,386.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.