Finding the Fourth Proportional to 83,857.80, 125,786.70 and 83,857.80
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Solution
The fourth proportional to 83,857.80, 125,786.70 and 83,857.80 is: 125,786.70
Step by Step Solution
- Step 1: Write the proportion equation
83,857.80 : 125,786.70 = 83,857.80 : x - Step 2: Convert to fraction form
83,857.80/125,786.70 = 83,857.80/x - Step 3: Cross multiply
83,857.80x = 125,786.70 × 83,857.80 - Step 4: Simplify right side
83,857.80x = 10,548,195,931.26 - Step 5: Solve for x
x = 10,548,195,931.26/83,857.80 - Step 6: Final answer
x = 125,786.70
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1.5x scale
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.