Finding the Fourth Proportional to 134,528.80, 201,793.20 and 75,479.80
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Solution
The fourth proportional to 134,528.80, 201,793.20 and 75,479.80 is: 113,219.70
Step by Step Solution
- Step 1: Write the proportion equation
134,528.80 : 201,793.20 = 75,479.80 : x - Step 2: Convert to fraction form
134,528.80/201,793.20 = 75,479.80/x - Step 3: Cross multiply
134,528.80x = 201,793.20 × 75,479.80 - Step 4: Simplify right side
134,528.80x = 15,231,310,377.36 - Step 5: Solve for x
x = 15,231,310,377.36/134,528.80 - Step 6: Final answer
x = 113,219.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.