Finding the Fourth Proportional to 189,219.53, 261,122.66 and 104,336.79
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Solution
The fourth proportional to 189,219.53, 261,122.66 and 104,336.79 is: 143,984.61
Step by Step Solution
- Step 1: Write the proportion equation
189,219.53 : 261,122.66 = 104,336.79 : x - Step 2: Convert to fraction form
189,219.53/261,122.66 = 104,336.79/x - Step 3: Cross multiply
189,219.53x = 261,122.66 × 104,336.79 - Step 4: Simplify right side
189,219.53x = 27,244,699,618.98 - Step 5: Solve for x
x = 27,244,699,618.98/189,219.53 - Step 6: Final answer
x = 143,984.61
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1.5x scale
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.