Finding the Fourth Proportional to 119,652.81, 165,121.98 and 65,939.75
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Solution
The fourth proportional to 119,652.81, 165,121.98 and 65,939.75 is: 90,997.46
Step by Step Solution
- Step 1: Write the proportion equation
119,652.81 : 165,121.98 = 65,939.75 : x - Step 2: Convert to fraction form
119,652.81/165,121.98 = 65,939.75/x - Step 3: Cross multiply
119,652.81x = 165,121.98 × 65,939.75 - Step 4: Simplify right side
119,652.81x = 10,888,101,255.10 - Step 5: Solve for x
x = 10,888,101,255.10/119,652.81 - Step 6: Final answer
x = 90,997.46
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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.