Finding the Fourth Proportional to 137,183.08, 189,320.01 and 76,750.12
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Solution
The fourth proportional to 137,183.08, 189,320.01 and 76,750.12 is: 105,919.28
Step by Step Solution
- Step 1: Write the proportion equation
137,183.08 : 189,320.01 = 76,750.12 : x - Step 2: Convert to fraction form
137,183.08/189,320.01 = 76,750.12/x - Step 3: Cross multiply
137,183.08x = 189,320.01 × 76,750.12 - Step 4: Simplify right side
137,183.08x = 14,530,333,485.90 - Step 5: Solve for x
x = 14,530,333,485.90/137,183.08 - Step 6: Final answer
x = 105,919.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.