Finding the Fourth Proportional to 119,879.98, 165,439.77 and 68,909.26
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Solution
The fourth proportional to 119,879.98, 165,439.77 and 68,909.26 is: 95,097.88
Step by Step Solution
- Step 1: Write the proportion equation
119,879.98 : 165,439.77 = 68,909.26 : x - Step 2: Convert to fraction form
119,879.98/165,439.77 = 68,909.26/x - Step 3: Cross multiply
119,879.98x = 165,439.77 × 68,909.26 - Step 4: Simplify right side
119,879.98x = 11,400,332,125.27 - Step 5: Solve for x
x = 11,400,332,125.27/119,879.98 - Step 6: Final answer
x = 95,097.88
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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.