Finding the Fourth Proportional to 135,655.40, 203,483.10 and 120,621.80
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Solution
The fourth proportional to 135,655.40, 203,483.10 and 120,621.80 is: 180,932.70
Step by Step Solution
- Step 1: Write the proportion equation
135,655.40 : 203,483.10 = 120,621.80 : x - Step 2: Convert to fraction form
135,655.40/203,483.10 = 120,621.80/x - Step 3: Cross multiply
135,655.40x = 203,483.10 × 120,621.80 - Step 4: Simplify right side
135,655.40x = 24,544,497,791.58 - Step 5: Solve for x
x = 24,544,497,791.58/135,655.40 - Step 6: Final answer
x = 180,932.70
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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.