Finding the Fourth Proportional to 130,102.20, 194,861.70 and 106,774.20
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Solution
The fourth proportional to 130,102.20, 194,861.70 and 106,774.20 is: 159,921.99
Step by Step Solution
- Step 1: Write the proportion equation
130,102.20 : 194,861.70 = 106,774.20 : x - Step 2: Convert to fraction form
130,102.20/194,861.70 = 106,774.20/x - Step 3: Cross multiply
130,102.20x = 194,861.70 × 106,774.20 - Step 4: Simplify right side
130,102.20x = 20,806,202,128.14 - Step 5: Solve for x
x = 20,806,202,128.14/130,102.20 - Step 6: Final answer
x = 159,921.99
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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.