Finding the Fourth Proportional to 129,485.78, 194,177.64 and 62,906.21
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Solution
The fourth proportional to 129,485.78, 194,177.64 and 62,906.21 is: 94,334.52
Step by Step Solution
- Step 1: Write the proportion equation
129,485.78 : 194,177.64 = 62,906.21 : x - Step 2: Convert to fraction form
129,485.78/194,177.64 = 62,906.21/x - Step 3: Cross multiply
129,485.78x = 194,177.64 × 62,906.21 - Step 4: Simplify right side
129,485.78x = 12,214,979,399.14 - Step 5: Solve for x
x = 12,214,979,399.14/129,485.78 - Step 6: Final answer
x = 94,334.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.