Finding the Fourth Proportional to 157,299.78, 217,121.14 and 107,027.94
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Solution
The fourth proportional to 157,299.78, 217,121.14 and 107,027.94 is: 147,730.84
Step by Step Solution
- Step 1: Write the proportion equation
157,299.78 : 217,121.14 = 107,027.94 : x - Step 2: Convert to fraction form
157,299.78/217,121.14 = 107,027.94/x - Step 3: Cross multiply
157,299.78x = 217,121.14 × 107,027.94 - Step 4: Simplify right side
157,299.78x = 23,238,028,344.65 - Step 5: Solve for x
x = 23,238,028,344.65/157,299.78 - Step 6: Final answer
x = 147,730.84
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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.