Finding the Fourth Proportional to 82,830.80, 124,246.20 and 73,845.20
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Solution
The fourth proportional to 82,830.80, 124,246.20 and 73,845.20 is: 110,767.80
Step by Step Solution
- Step 1: Write the proportion equation
82,830.80 : 124,246.20 = 73,845.20 : x - Step 2: Convert to fraction form
82,830.80/124,246.20 = 73,845.20/x - Step 3: Cross multiply
82,830.80x = 124,246.20 × 73,845.20 - Step 4: Simplify right side
82,830.80x = 9,174,985,488.24 - Step 5: Solve for x
x = 9,174,985,488.24/82,830.80 - Step 6: Final answer
x = 110,767.80
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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.