Finding the Fourth Proportional to 142,722.87, 214,032.63 and 47,924.70
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Solution
The fourth proportional to 142,722.87, 214,032.63 and 47,924.70 is: 71,869.70
Step by Step Solution
- Step 1: Write the proportion equation
142,722.87 : 214,032.63 = 47,924.70 : x - Step 2: Convert to fraction form
142,722.87/214,032.63 = 47,924.70/x - Step 3: Cross multiply
142,722.87x = 214,032.63 × 47,924.70 - Step 4: Simplify right side
142,722.87x = 10,257,449,582.96 - Step 5: Solve for x
x = 10,257,449,582.96/142,722.87 - Step 6: Final answer
x = 71,869.70
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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.