Finding the Fourth Proportional to 119,920.48, 165,497.76 and 68,949.44
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Solution
The fourth proportional to 119,920.48, 165,497.76 and 68,949.44 is: 95,154.54
Step by Step Solution
- Step 1: Write the proportion equation
119,920.48 : 165,497.76 = 68,949.44 : x - Step 2: Convert to fraction form
119,920.48/165,497.76 = 68,949.44/x - Step 3: Cross multiply
119,920.48x = 165,497.76 × 68,949.44 - Step 4: Simplify right side
119,920.48x = 11,410,977,873.25 - Step 5: Solve for x
x = 11,410,977,873.25/119,920.48 - Step 6: Final answer
x = 95,154.54
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1.5x scale
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.