Finding the Fourth Proportional to 189,657.99, 261,717.53 and 109,086.87
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Solution
The fourth proportional to 189,657.99, 261,717.53 and 109,086.87 is: 150,533.84
Step by Step Solution
- Step 1: Write the proportion equation
189,657.99 : 261,717.53 = 109,086.87 : x - Step 2: Convert to fraction form
189,657.99/261,717.53 = 109,086.87/x - Step 3: Cross multiply
189,657.99x = 261,717.53 × 109,086.87 - Step 4: Simplify right side
189,657.99x = 28,549,945,626.40 - Step 5: Solve for x
x = 28,549,945,626.40/189,657.99 - Step 6: Final answer
x = 150,533.84
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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.