Finding the Fourth Proportional to 120,551.36, 166,358.30 and 69,560.09
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Solution
The fourth proportional to 120,551.36, 166,358.30 and 69,560.09 is: 95,991.43
Step by Step Solution
- Step 1: Write the proportion equation
120,551.36 : 166,358.30 = 69,560.09 : x - Step 2: Convert to fraction form
120,551.36/166,358.30 = 69,560.09/x - Step 3: Cross multiply
120,551.36x = 166,358.30 × 69,560.09 - Step 4: Simplify right side
120,551.36x = 11,571,897,488.46 - Step 5: Solve for x
x = 11,571,897,488.46/120,551.36 - Step 6: Final answer
x = 95,991.43
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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.