Finding the Fourth Proportional to 118,579.20, 177,868.80 and 48,508.80
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Solution
The fourth proportional to 118,579.20, 177,868.80 and 48,508.80 is: 72,763.20
Step by Step Solution
- Step 1: Write the proportion equation
118,579.20 : 177,868.80 = 48,508.80 : x - Step 2: Convert to fraction form
118,579.20/177,868.80 = 48,508.80/x - Step 3: Cross multiply
118,579.20x = 177,868.80 × 48,508.80 - Step 4: Simplify right side
118,579.20x = 8,628,202,045.44 - Step 5: Solve for x
x = 8,628,202,045.44/118,579.20 - Step 6: Final answer
x = 72,763.20
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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.