Finding the Fourth Proportional to 119,874.65, 165,418.20 and 68,887.48
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Solution
The fourth proportional to 119,874.65, 165,418.20 and 68,887.48 is: 95,059.65
Step by Step Solution
- Step 1: Write the proportion equation
119,874.65 : 165,418.20 = 68,887.48 : x - Step 2: Convert to fraction form
119,874.65/165,418.20 = 68,887.48/x - Step 3: Cross multiply
119,874.65x = 165,418.20 × 68,887.48 - Step 4: Simplify right side
119,874.65x = 11,395,242,840.75 - Step 5: Solve for x
x = 11,395,242,840.75/119,874.65 - Step 6: Final answer
x = 95,059.65
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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.