Finding the Fourth Proportional to 143,453.36, 198,107.60 and 118,209.84
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Solution
The fourth proportional to 143,453.36, 198,107.60 and 118,209.84 is: 163,246.56
Step by Step Solution
- Step 1: Write the proportion equation
143,453.36 : 198,107.60 = 118,209.84 : x - Step 2: Convert to fraction form
143,453.36/198,107.60 = 118,209.84/x - Step 3: Cross multiply
143,453.36x = 198,107.60 × 118,209.84 - Step 4: Simplify right side
143,453.36x = 23,418,267,698.78 - Step 5: Solve for x
x = 23,418,267,698.78/143,453.36 - Step 6: Final answer
x = 163,246.56
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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.