Finding the Fourth Proportional to 146,315.08, 201,915.78 and 79,247.08
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Solution
The fourth proportional to 146,315.08, 201,915.78 and 79,247.08 is: 109,361.50
Step by Step Solution
- Step 1: Write the proportion equation
146,315.08 : 201,915.78 = 79,247.08 : x - Step 2: Convert to fraction form
146,315.08/201,915.78 = 79,247.08/x - Step 3: Cross multiply
146,315.08x = 201,915.78 × 79,247.08 - Step 4: Simplify right side
146,315.08x = 16,001,235,970.92 - Step 5: Solve for x
x = 16,001,235,970.92/146,315.08 - Step 6: Final answer
x = 109,361.50
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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.