Finding the Fourth Proportional to 104,435.73, 144,121.47 and 56,689.06
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Solution
The fourth proportional to 104,435.73, 144,121.47 and 56,689.06 is: 78,230.99
Step by Step Solution
- Step 1: Write the proportion equation
104,435.73 : 144,121.47 = 56,689.06 : x - Step 2: Convert to fraction form
104,435.73/144,121.47 = 56,689.06/x - Step 3: Cross multiply
104,435.73x = 144,121.47 × 56,689.06 - Step 4: Simplify right side
104,435.73x = 8,170,110,660.12 - Step 5: Solve for x
x = 8,170,110,660.12/104,435.73 - Step 6: Final answer
x = 78,230.99
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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.