Finding the Fourth Proportional to 236,139.03, 325,869.84 and 128,709.09
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Solution
The fourth proportional to 236,139.03, 325,869.84 and 128,709.09 is: 177,617.44
Step by Step Solution
- Step 1: Write the proportion equation
236,139.03 : 325,869.84 = 128,709.09 : x - Step 2: Convert to fraction form
236,139.03/325,869.84 = 128,709.09/x - Step 3: Cross multiply
236,139.03x = 325,869.84 × 128,709.09 - Step 4: Simplify right side
236,139.03x = 41,942,410,564.85 - Step 5: Solve for x
x = 41,942,410,564.85/236,139.03 - Step 6: Final answer
x = 177,617.44
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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.