Finding the Fourth Proportional to 118,206.80, 177,310.20 and 113,541.20
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Solution
The fourth proportional to 118,206.80, 177,310.20 and 113,541.20 is: 170,311.80
Step by Step Solution
- Step 1: Write the proportion equation
118,206.80 : 177,310.20 = 113,541.20 : x - Step 2: Convert to fraction form
118,206.80/177,310.20 = 113,541.20/x - Step 3: Cross multiply
118,206.80x = 177,310.20 × 113,541.20 - Step 4: Simplify right side
118,206.80x = 20,132,012,880.24 - Step 5: Solve for x
x = 20,132,012,880.24/118,206.80 - Step 6: Final answer
x = 170,311.80
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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.