Finding the Fourth Proportional to 122,669.60, 183,777.60 and 69,922.40
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Solution
The fourth proportional to 122,669.60, 183,777.60 and 69,922.40 is: 104,754.32
Step by Step Solution
- Step 1: Write the proportion equation
122,669.60 : 183,777.60 = 69,922.40 : x - Step 2: Convert to fraction form
122,669.60/183,777.60 = 69,922.40/x - Step 3: Cross multiply
122,669.60x = 183,777.60 × 69,922.40 - Step 4: Simplify right side
122,669.60x = 12,850,170,858.24 - Step 5: Solve for x
x = 12,850,170,858.24/122,669.60 - Step 6: Final answer
x = 104,754.32
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1.5x scale
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.