Finding the Fourth Proportional to 189,027.81, 260,857.61 and 102,986.55
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Solution
The fourth proportional to 189,027.81, 260,857.61 and 102,986.55 is: 142,121.02
Step by Step Solution
- Step 1: Write the proportion equation
189,027.81 : 260,857.61 = 102,986.55 : x - Step 2: Convert to fraction form
189,027.81/260,857.61 = 102,986.55/x - Step 3: Cross multiply
189,027.81x = 260,857.61 × 102,986.55 - Step 4: Simplify right side
189,027.81x = 26,864,825,432.36 - Step 5: Solve for x
x = 26,864,825,432.36/189,027.81 - Step 6: Final answer
x = 142,121.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.