Finding the Fourth Proportional to 143,816.14, 198,474.87 and 80,153.79
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Solution
The fourth proportional to 143,816.14, 198,474.87 and 80,153.79 is: 110,617.02
Step by Step Solution
- Step 1: Write the proportion equation
143,816.14 : 198,474.87 = 80,153.79 : x - Step 2: Convert to fraction form
143,816.14/198,474.87 = 80,153.79/x - Step 3: Cross multiply
143,816.14x = 198,474.87 × 80,153.79 - Step 4: Simplify right side
143,816.14x = 15,908,513,050.26 - Step 5: Solve for x
x = 15,908,513,050.26/143,816.14 - Step 6: Final answer
x = 110,617.02
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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.