Finding the Fourth Proportional to 121,027.26, 167,017.62 and 66,580.19
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Solution
The fourth proportional to 121,027.26, 167,017.62 and 66,580.19 is: 91,880.66
Step by Step Solution
- Step 1: Write the proportion equation
121,027.26 : 167,017.62 = 66,580.19 : x - Step 2: Convert to fraction form
121,027.26/167,017.62 = 66,580.19/x - Step 3: Cross multiply
121,027.26x = 167,017.62 × 66,580.19 - Step 4: Simplify right side
121,027.26x = 11,120,064,037.86 - Step 5: Solve for x
x = 11,120,064,037.86/121,027.26 - Step 6: Final answer
x = 91,880.66
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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.