Finding the Fourth Proportional to 119,879.19, 165,457.49 and 68,927.56
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Solution
The fourth proportional to 119,879.19, 165,457.49 and 68,927.56 is: 95,133.95
Step by Step Solution
- Step 1: Write the proportion equation
119,879.19 : 165,457.49 = 68,927.56 : x - Step 2: Convert to fraction form
119,879.19/165,457.49 = 68,927.56/x - Step 3: Cross multiply
119,879.19x = 165,457.49 × 68,927.56 - Step 4: Simplify right side
119,879.19x = 11,404,580,311.14 - Step 5: Solve for x
x = 11,404,580,311.14/119,879.19 - Step 6: Final answer
x = 95,133.95
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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.