Finding the Fourth Proportional to 122,801.28, 169,458.84 and 69,088.56
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Solution
The fourth proportional to 122,801.28, 169,458.84 and 69,088.56 is: 95,338.32
Step by Step Solution
- Step 1: Write the proportion equation
122,801.28 : 169,458.84 = 69,088.56 : x - Step 2: Convert to fraction form
122,801.28/169,458.84 = 69,088.56/x - Step 3: Cross multiply
122,801.28x = 169,458.84 × 69,088.56 - Step 4: Simplify right side
122,801.28x = 11,707,667,234.87 - Step 5: Solve for x
x = 11,707,667,234.87/122,801.28 - Step 6: Final answer
x = 95,338.32
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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.