Finding the Fourth Proportional to 121,020.12, 181,340.52 and 76,552.94
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Solution
The fourth proportional to 121,020.12, 181,340.52 and 76,552.94 is: 114,709.44
Step by Step Solution
- Step 1: Write the proportion equation
121,020.12 : 181,340.52 = 76,552.94 : x - Step 2: Convert to fraction form
121,020.12/181,340.52 = 76,552.94/x - Step 3: Cross multiply
121,020.12x = 181,340.52 × 76,552.94 - Step 4: Simplify right side
121,020.12x = 13,882,149,947.13 - Step 5: Solve for x
x = 13,882,149,947.13/121,020.12 - Step 6: Final answer
x = 114,709.44
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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.