Finding the Fourth Proportional to 99,767.28, 149,669.16 and 33,201.12
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Solution
The fourth proportional to 99,767.28, 149,669.16 and 33,201.12 is: 49,807.75
Step by Step Solution
- Step 1: Write the proportion equation
99,767.28 : 149,669.16 = 33,201.12 : x - Step 2: Convert to fraction form
99,767.28/149,669.16 = 33,201.12/x - Step 3: Cross multiply
99,767.28x = 149,669.16 × 33,201.12 - Step 4: Simplify right side
99,767.28x = 4,969,183,741.46 - Step 5: Solve for x
x = 4,969,183,741.46/99,767.28 - Step 6: Final answer
x = 49,807.75
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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.