Finding the Fourth Proportional to 189,722.62, 261,833.78 and 104,856.08
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Solution
The fourth proportional to 189,722.62, 261,833.78 and 104,856.08 is: 144,710.55
Step by Step Solution
- Step 1: Write the proportion equation
189,722.62 : 261,833.78 = 104,856.08 : x - Step 2: Convert to fraction form
189,722.62/261,833.78 = 104,856.08/x - Step 3: Cross multiply
189,722.62x = 261,833.78 × 104,856.08 - Step 4: Simplify right side
189,722.62x = 27,454,863,782.38 - Step 5: Solve for x
x = 27,454,863,782.38/189,722.62 - Step 6: Final answer
x = 144,710.55
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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.