Finding the Fourth Proportional to 118,577.20, 177,865.80 and 48,506.80
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Solution
The fourth proportional to 118,577.20, 177,865.80 and 48,506.80 is: 72,760.20
Step by Step Solution
- Step 1: Write the proportion equation
118,577.20 : 177,865.80 = 48,506.80 : x - Step 2: Convert to fraction form
118,577.20/177,865.80 = 48,506.80/x - Step 3: Cross multiply
118,577.20x = 177,865.80 × 48,506.80 - Step 4: Simplify right side
118,577.20x = 8,627,700,787.44 - Step 5: Solve for x
x = 8,627,700,787.44/118,577.20 - Step 6: Final answer
x = 72,760.20
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1.5x scale
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.