Finding the Fourth Proportional to 147,015.75, 202,883.36 and 79,947.75
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Solution
The fourth proportional to 147,015.75, 202,883.36 and 79,947.75 is: 110,328.78
Step by Step Solution
- Step 1: Write the proportion equation
147,015.75 : 202,883.36 = 79,947.75 : x - Step 2: Convert to fraction form
147,015.75/202,883.36 = 79,947.75/x - Step 3: Cross multiply
147,015.75x = 202,883.36 × 79,947.75 - Step 4: Simplify right side
147,015.75x = 16,220,067,744.70 - Step 5: Solve for x
x = 16,220,067,744.70/147,015.75 - Step 6: Final answer
x = 110,328.78
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1.5x scale
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.