Finding the Fourth Proportional to 189,541.62, 261,679.41 and 126,011.70
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Solution
The fourth proportional to 189,541.62, 261,679.41 and 126,011.70 is: 173,970.59
Step by Step Solution
- Step 1: Write the proportion equation
189,541.62 : 261,679.41 = 126,011.70 : x - Step 2: Convert to fraction form
189,541.62/261,679.41 = 126,011.70/x - Step 3: Cross multiply
189,541.62x = 261,679.41 × 126,011.70 - Step 4: Simplify right side
189,541.62x = 32,974,667,309.10 - Step 5: Solve for x
x = 32,974,667,309.10/189,541.62 - Step 6: Final answer
x = 173,970.59
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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.