Finding the Fourth Proportional to 119,571.87, 165,009.38 and 65,856.99
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Solution
The fourth proportional to 119,571.87, 165,009.38 and 65,856.99 is: 90,882.75
Step by Step Solution
- Step 1: Write the proportion equation
119,571.87 : 165,009.38 = 65,856.99 : x - Step 2: Convert to fraction form
119,571.87/165,009.38 = 65,856.99/x - Step 3: Cross multiply
119,571.87x = 165,009.38 × 65,856.99 - Step 4: Simplify right side
119,571.87x = 10,867,020,759.28 - Step 5: Solve for x
x = 10,867,020,759.28/119,571.87 - Step 6: Final answer
x = 90,882.75
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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.