Finding the Fourth Proportional to 139,968.36, 193,003.92 and 94,567.68
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Solution
The fourth proportional to 139,968.36, 193,003.92 and 94,567.68 is: 130,400.42
Step by Step Solution
- Step 1: Write the proportion equation
139,968.36 : 193,003.92 = 94,567.68 : x - Step 2: Convert to fraction form
139,968.36/193,003.92 = 94,567.68/x - Step 3: Cross multiply
139,968.36x = 193,003.92 × 94,567.68 - Step 4: Simplify right side
139,968.36x = 18,251,932,945.31 - Step 5: Solve for x
x = 18,251,932,945.31/139,968.36 - Step 6: Final answer
x = 130,400.42
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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.