Finding the Fourth Proportional to 121,671.52, 182,356.60 and 68,921.08
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Solution
The fourth proportional to 121,671.52, 182,356.60 and 68,921.08 is: 103,296.27
Step by Step Solution
- Step 1: Write the proportion equation
121,671.52 : 182,356.60 = 68,921.08 : x - Step 2: Convert to fraction form
121,671.52/182,356.60 = 68,921.08/x - Step 3: Cross multiply
121,671.52x = 182,356.60 × 68,921.08 - Step 4: Simplify right side
121,671.52x = 12,568,213,817.13 - Step 5: Solve for x
x = 12,568,213,817.13/121,671.52 - Step 6: Final answer
x = 103,296.27
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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.