Finding the Fourth Proportional to 140,657.87, 210,840.99 and 87,946.31
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Solution
The fourth proportional to 140,657.87, 210,840.99 and 87,946.31 is: 131,828.29
Step by Step Solution
- Step 1: Write the proportion equation
140,657.87 : 210,840.99 = 87,946.31 : x - Step 2: Convert to fraction form
140,657.87/210,840.99 = 87,946.31/x - Step 3: Cross multiply
140,657.87x = 210,840.99 × 87,946.31 - Step 4: Simplify right side
140,657.87x = 18,542,687,067.25 - Step 5: Solve for x
x = 18,542,687,067.25/140,657.87 - Step 6: Final answer
x = 131,828.29
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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.