Finding the Fourth Proportional to 120,750.60, 181,320.30 and 91,201.80
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Solution
The fourth proportional to 120,750.60, 181,320.30 and 91,201.80 is: 136,949.53
Step by Step Solution
- Step 1: Write the proportion equation
120,750.60 : 181,320.30 = 91,201.80 : x - Step 2: Convert to fraction form
120,750.60/181,320.30 = 91,201.80/x - Step 3: Cross multiply
120,750.60x = 181,320.30 × 91,201.80 - Step 4: Simplify right side
120,750.60x = 16,536,737,736.54 - Step 5: Solve for x
x = 16,536,737,736.54/120,750.60 - Step 6: Final answer
x = 136,949.53
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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.