Finding the Fourth Proportional to 122,940.63, 169,656.45 and 69,230.95
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Solution
The fourth proportional to 122,940.63, 169,656.45 and 69,230.95 is: 95,537.80
Step by Step Solution
- Step 1: Write the proportion equation
122,940.63 : 169,656.45 = 69,230.95 : x - Step 2: Convert to fraction form
122,940.63/169,656.45 = 69,230.95/x - Step 3: Cross multiply
122,940.63x = 169,656.45 × 69,230.95 - Step 4: Simplify right side
122,940.63x = 11,745,477,207.13 - Step 5: Solve for x
x = 11,745,477,207.13/122,940.63 - Step 6: Final answer
x = 95,537.80
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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.