Finding the Fourth Proportional to 129,660.70, 194,476.65 and 106,246.30
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Solution
The fourth proportional to 129,660.70, 194,476.65 and 106,246.30 is: 159,357.65
Step by Step Solution
- Step 1: Write the proportion equation
129,660.70 : 194,476.65 = 106,246.30 : x - Step 2: Convert to fraction form
129,660.70/194,476.65 = 106,246.30/x - Step 3: Cross multiply
129,660.70x = 194,476.65 × 106,246.30 - Step 4: Simplify right side
129,660.70x = 20,662,424,498.90 - Step 5: Solve for x
x = 20,662,424,498.90/129,660.70 - Step 6: Final answer
x = 159,357.65
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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.