Finding the Fourth Proportional to 142,760.22, 197,009.01 and 82,329.99
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Solution
The fourth proportional to 142,760.22, 197,009.01 and 82,329.99 is: 113,615.33
Step by Step Solution
- Step 1: Write the proportion equation
142,760.22 : 197,009.01 = 82,329.99 : x - Step 2: Convert to fraction form
142,760.22/197,009.01 = 82,329.99/x - Step 3: Cross multiply
142,760.22x = 197,009.01 × 82,329.99 - Step 4: Simplify right side
142,760.22x = 16,219,749,823.21 - Step 5: Solve for x
x = 16,219,749,823.21/142,760.22 - Step 6: Final answer
x = 113,615.33
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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.