Finding the Fourth Proportional to 191,142.78, 263,745.99 and 106,257.66
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Solution
The fourth proportional to 191,142.78, 263,745.99 and 106,257.66 is: 146,618.31
Step by Step Solution
- Step 1: Write the proportion equation
191,142.78 : 263,745.99 = 106,257.66 : x - Step 2: Convert to fraction form
191,142.78/263,745.99 = 106,257.66/x - Step 3: Cross multiply
191,142.78x = 263,745.99 × 106,257.66 - Step 4: Simplify right side
191,142.78x = 28,025,031,731.78 - Step 5: Solve for x
x = 28,025,031,731.78/191,142.78 - Step 6: Final answer
x = 146,618.31
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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.