Finding the Fourth Proportional to 122,261.16, 183,391.74 and 80,698.44
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Solution
The fourth proportional to 122,261.16, 183,391.74 and 80,698.44 is: 121,047.66
Step by Step Solution
- Step 1: Write the proportion equation
122,261.16 : 183,391.74 = 80,698.44 : x - Step 2: Convert to fraction form
122,261.16/183,391.74 = 80,698.44/x - Step 3: Cross multiply
122,261.16x = 183,391.74 × 80,698.44 - Step 4: Simplify right side
122,261.16x = 14,799,427,326.89 - Step 5: Solve for x
x = 14,799,427,326.89/122,261.16 - Step 6: Final answer
x = 121,047.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.