Finding the Fourth Proportional to 103,944.30, 155,527.20 and 74,027.70
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Solution
The fourth proportional to 103,944.30, 155,527.20 and 74,027.70 is: 110,764.33
Step by Step Solution
- Step 1: Write the proportion equation
103,944.30 : 155,527.20 = 74,027.70 : x - Step 2: Convert to fraction form
103,944.30/155,527.20 = 74,027.70/x - Step 3: Cross multiply
103,944.30x = 155,527.20 × 74,027.70 - Step 4: Simplify right side
103,944.30x = 11,513,320,903.44 - Step 5: Solve for x
x = 11,513,320,903.44/103,944.30 - Step 6: Final answer
x = 110,764.33
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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.