Finding the Fourth Proportional to 143,203.24, 197,620.52 and 79,546.96
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Solution
The fourth proportional to 143,203.24, 197,620.52 and 79,546.96 is: 109,774.83
Step by Step Solution
- Step 1: Write the proportion equation
143,203.24 : 197,620.52 = 79,546.96 : x - Step 2: Convert to fraction form
143,203.24/197,620.52 = 79,546.96/x - Step 3: Cross multiply
143,203.24x = 197,620.52 × 79,546.96 - Step 4: Simplify right side
143,203.24x = 15,720,111,599.62 - Step 5: Solve for x
x = 15,720,111,599.62/143,203.24 - Step 6: Final answer
x = 109,774.83
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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.