Finding the Fourth Proportional to 103,753.31, 155,678.57 and 51,134.09
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Solution
The fourth proportional to 103,753.31, 155,678.57 and 51,134.09 is: 76,725.09
Step by Step Solution
- Step 1: Write the proportion equation
103,753.31 : 155,678.57 = 51,134.09 : x - Step 2: Convert to fraction form
103,753.31/155,678.57 = 51,134.09/x - Step 3: Cross multiply
103,753.31x = 155,678.57 × 51,134.09 - Step 4: Simplify right side
103,753.31x = 7,960,482,009.45 - Step 5: Solve for x
x = 7,960,482,009.45/103,753.31 - Step 6: Final answer
x = 76,725.09
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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.