Finding the Fourth Proportional to 133,781.75, 184,647.62 and 80,078.75
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Solution
The fourth proportional to 133,781.75, 184,647.62 and 80,078.75 is: 110,525.92
Step by Step Solution
- Step 1: Write the proportion equation
133,781.75 : 184,647.62 = 80,078.75 : x - Step 2: Convert to fraction form
133,781.75/184,647.62 = 80,078.75/x - Step 3: Cross multiply
133,781.75x = 184,647.62 × 80,078.75 - Step 4: Simplify right side
133,781.75x = 14,786,350,600.08 - Step 5: Solve for x
x = 14,786,350,600.08/133,781.75 - Step 6: Final answer
x = 110,525.92
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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.