Finding the Fourth Proportional to 128,182.14, 176,628.33 and 115,410.06
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Solution
The fourth proportional to 128,182.14, 176,628.33 and 115,410.06 is: 159,029.07
Step by Step Solution
- Step 1: Write the proportion equation
128,182.14 : 176,628.33 = 115,410.06 : x - Step 2: Convert to fraction form
128,182.14/176,628.33 = 115,410.06/x - Step 3: Cross multiply
128,182.14x = 176,628.33 × 115,410.06 - Step 4: Simplify right side
128,182.14x = 20,384,686,163.00 - Step 5: Solve for x
x = 20,384,686,163.00/128,182.14 - Step 6: Final answer
x = 159,029.07
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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.