Finding the Fourth Proportional to 112,858.14, 169,141.41 and 53,711.94
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Solution
The fourth proportional to 112,858.14, 169,141.41 and 53,711.94 is: 80,498.52
Step by Step Solution
- Step 1: Write the proportion equation
112,858.14 : 169,141.41 = 53,711.94 : x - Step 2: Convert to fraction form
112,858.14/169,141.41 = 53,711.94/x - Step 3: Cross multiply
112,858.14x = 169,141.41 × 53,711.94 - Step 4: Simplify right side
112,858.14x = 9,084,913,265.44 - Step 5: Solve for x
x = 9,084,913,265.44/112,858.14 - Step 6: Final answer
x = 80,498.52
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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.