Finding the Fourth Proportional to 82,801.20, 124,201.80 and 74,506.80
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Solution
The fourth proportional to 82,801.20, 124,201.80 and 74,506.80 is: 111,760.20
Step by Step Solution
- Step 1: Write the proportion equation
82,801.20 : 124,201.80 = 74,506.80 : x - Step 2: Convert to fraction form
82,801.20/124,201.80 = 74,506.80/x - Step 3: Cross multiply
82,801.20x = 124,201.80 × 74,506.80 - Step 4: Simplify right side
82,801.20x = 9,253,878,672.24 - Step 5: Solve for x
x = 9,253,878,672.24/82,801.20 - Step 6: Final answer
x = 111,760.20
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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.