Finding the Fourth Proportional to 189,639.02, 284,570.75 and 69,780.14
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Solution
The fourth proportional to 189,639.02, 284,570.75 and 69,780.14 is: 104,711.50
Step by Step Solution
- Step 1: Write the proportion equation
189,639.02 : 284,570.75 = 69,780.14 : x - Step 2: Convert to fraction form
189,639.02/284,570.75 = 69,780.14/x - Step 3: Cross multiply
189,639.02x = 284,570.75 × 69,780.14 - Step 4: Simplify right side
189,639.02x = 19,857,385,352.05 - Step 5: Solve for x
x = 19,857,385,352.05/189,639.02 - Step 6: Final answer
x = 104,711.50
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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.