Finding the Fourth Proportional to 133,183.30, 199,773.58 and 76,987.66
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Solution
The fourth proportional to 133,183.30, 199,773.58 and 76,987.66 is: 115,480.69
Step by Step Solution
- Step 1: Write the proportion equation
133,183.30 : 199,773.58 = 76,987.66 : x - Step 2: Convert to fraction form
133,183.30/199,773.58 = 76,987.66/x - Step 3: Cross multiply
133,183.30x = 199,773.58 × 76,987.66 - Step 4: Simplify right side
133,183.30x = 15,380,099,455.15 - Step 5: Solve for x
x = 15,380,099,455.15/133,183.30 - Step 6: Final answer
x = 115,480.69
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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.