Finding the Fourth Proportional to 120,223.44, 165,920.81 and 69,237.99
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Solution
The fourth proportional to 120,223.44, 165,920.81 and 69,237.99 is: 95,555.60
Step by Step Solution
- Step 1: Write the proportion equation
120,223.44 : 165,920.81 = 69,237.99 : x - Step 2: Convert to fraction form
120,223.44/165,920.81 = 69,237.99/x - Step 3: Cross multiply
120,223.44x = 165,920.81 × 69,237.99 - Step 4: Simplify right side
120,223.44x = 11,488,023,037.38 - Step 5: Solve for x
x = 11,488,023,037.38/120,223.44 - Step 6: Final answer
x = 95,555.60
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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.