Finding the Fourth Proportional to 82,158.43, 122,547.36 and 74,590.48
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Solution
The fourth proportional to 82,158.43, 122,547.36 and 74,590.48 is: 111,259.02
Step by Step Solution
- Step 1: Write the proportion equation
82,158.43 : 122,547.36 = 74,590.48 : x - Step 2: Convert to fraction form
82,158.43/122,547.36 = 74,590.48/x - Step 3: Cross multiply
82,158.43x = 122,547.36 × 74,590.48 - Step 4: Simplify right side
82,158.43x = 9,140,866,405.13 - Step 5: Solve for x
x = 9,140,866,405.13/82,158.43 - Step 6: Final answer
x = 111,259.02
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.