Finding the Fourth Proportional to 120,636.56, 166,444.20 and 70,325.84
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Solution
The fourth proportional to 120,636.56, 166,444.20 and 70,325.84 is: 97,029.69
Step by Step Solution
- Step 1: Write the proportion equation
120,636.56 : 166,444.20 = 70,325.84 : x - Step 2: Convert to fraction form
120,636.56/166,444.20 = 70,325.84/x - Step 3: Cross multiply
120,636.56x = 166,444.20 × 70,325.84 - Step 4: Simplify right side
120,636.56x = 11,705,328,178.13 - Step 5: Solve for x
x = 11,705,328,178.13/120,636.56 - Step 6: Final answer
x = 97,029.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.