Finding the Fourth Proportional to 154,785.12, 232,177.68 and 123,817.20
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Solution
The fourth proportional to 154,785.12, 232,177.68 and 123,817.20 is: 185,725.80
Step by Step Solution
- Step 1: Write the proportion equation
154,785.12 : 232,177.68 = 123,817.20 : x - Step 2: Convert to fraction form
154,785.12/232,177.68 = 123,817.20/x - Step 3: Cross multiply
154,785.12x = 232,177.68 × 123,817.20 - Step 4: Simplify right side
154,785.12x = 28,747,590,240.10 - Step 5: Solve for x
x = 28,747,590,240.10/154,785.12 - Step 6: Final answer
x = 185,725.80
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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.