Finding the Fourth Proportional to 143,814.97, 198,464.84 and 86,454.92
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Solution
The fourth proportional to 143,814.97, 198,464.84 and 86,454.92 is: 119,307.90
Step by Step Solution
- Step 1: Write the proportion equation
143,814.97 : 198,464.84 = 86,454.92 : x - Step 2: Convert to fraction form
143,814.97/198,464.84 = 86,454.92/x - Step 3: Cross multiply
143,814.97x = 198,464.84 × 86,454.92 - Step 4: Simplify right side
143,814.97x = 17,158,261,865.01 - Step 5: Solve for x
x = 17,158,261,865.01/143,814.97 - Step 6: Final answer
x = 119,307.90
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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.