Finding the Fourth Proportional to 142,922.19, 197,201.08 and 82,479.99
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Solution
The fourth proportional to 142,922.19, 197,201.08 and 82,479.99 is: 113,804.18
Step by Step Solution
- Step 1: Write the proportion equation
142,922.19 : 197,201.08 = 82,479.99 : x - Step 2: Convert to fraction form
142,922.19/197,201.08 = 82,479.99/x - Step 3: Cross multiply
142,922.19x = 197,201.08 × 82,479.99 - Step 4: Simplify right side
142,922.19x = 16,265,143,106.39 - Step 5: Solve for x
x = 16,265,143,106.39/142,922.19 - Step 6: Final answer
x = 113,804.18
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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.