Finding the Fourth Proportional to 122,587.75, 183,881.64 and 39,481.75
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Solution
The fourth proportional to 122,587.75, 183,881.64 and 39,481.75 is: 59,222.63
Step by Step Solution
- Step 1: Write the proportion equation
122,587.75 : 183,881.64 = 39,481.75 : x - Step 2: Convert to fraction form
122,587.75/183,881.64 = 39,481.75/x - Step 3: Cross multiply
122,587.75x = 183,881.64 × 39,481.75 - Step 4: Simplify right side
122,587.75x = 7,259,968,742.66 - Step 5: Solve for x
x = 7,259,968,742.66/122,587.75 - Step 6: Final answer
x = 59,222.63
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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.