Finding the Fourth Proportional to 104,926.14, 144,793.86 and 57,178.47
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Solution
The fourth proportional to 104,926.14, 144,793.86 and 57,178.47 is: 78,903.99
Step by Step Solution
- Step 1: Write the proportion equation
104,926.14 : 144,793.86 = 57,178.47 : x - Step 2: Convert to fraction form
104,926.14/144,793.86 = 57,178.47/x - Step 3: Cross multiply
104,926.14x = 144,793.86 × 57,178.47 - Step 4: Simplify right side
104,926.14x = 8,279,091,380.19 - Step 5: Solve for x
x = 8,279,091,380.19/104,926.14 - Step 6: Final answer
x = 78,903.99
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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.