Finding the Fourth Proportional to 146,064.75, 201,569.36 and 78,996.75
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Solution
The fourth proportional to 146,064.75, 201,569.36 and 78,996.75 is: 109,015.52
Step by Step Solution
- Step 1: Write the proportion equation
146,064.75 : 201,569.36 = 78,996.75 : x - Step 2: Convert to fraction form
146,064.75/201,569.36 = 78,996.75/x - Step 3: Cross multiply
146,064.75x = 201,569.36 × 78,996.75 - Step 4: Simplify right side
146,064.75x = 15,923,324,339.58 - Step 5: Solve for x
x = 15,923,324,339.58/146,064.75 - Step 6: Final answer
x = 109,015.52
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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.