Finding the Fourth Proportional to 159,491.20, 239,236.80 and 70,917.70
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Solution
The fourth proportional to 159,491.20, 239,236.80 and 70,917.70 is: 106,376.55
Step by Step Solution
- Step 1: Write the proportion equation
159,491.20 : 239,236.80 = 70,917.70 : x - Step 2: Convert to fraction form
159,491.20/239,236.80 = 70,917.70/x - Step 3: Cross multiply
159,491.20x = 239,236.80 × 70,917.70 - Step 4: Simplify right side
159,491.20x = 16,966,123,611.36 - Step 5: Solve for x
x = 16,966,123,611.36/159,491.20 - Step 6: Final answer
x = 106,376.55
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1.5x scale
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.