Finding the Fourth Proportional to 103,329.44, 142,557.92 and 67,540.08
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Solution
The fourth proportional to 103,329.44, 142,557.92 and 67,540.08 is: 93,181.32
Step by Step Solution
- Step 1: Write the proportion equation
103,329.44 : 142,557.92 = 67,540.08 : x - Step 2: Convert to fraction form
103,329.44/142,557.92 = 67,540.08/x - Step 3: Cross multiply
103,329.44x = 142,557.92 × 67,540.08 - Step 4: Simplify right side
103,329.44x = 9,628,373,321.43 - Step 5: Solve for x
x = 9,628,373,321.43/103,329.44 - Step 6: Final answer
x = 93,181.32
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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.