Finding the Fourth Proportional to 159,807.60, 239,797.80 and 71,074.80
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Solution
The fourth proportional to 159,807.60, 239,797.80 and 71,074.80 is: 106,650.63
Step by Step Solution
- Step 1: Write the proportion equation
159,807.60 : 239,797.80 = 71,074.80 : x - Step 2: Convert to fraction form
159,807.60/239,797.80 = 71,074.80/x - Step 3: Cross multiply
159,807.60x = 239,797.80 × 71,074.80 - Step 4: Simplify right side
159,807.60x = 17,043,580,675.44 - Step 5: Solve for x
x = 17,043,580,675.44/159,807.60 - Step 6: Final answer
x = 106,650.63
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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.