Finding the Fourth Proportional to 122,135.78, 184,035.68 and 100,435.28
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Solution
The fourth proportional to 122,135.78, 184,035.68 and 100,435.28 is: 151,337.09
Step by Step Solution
- Step 1: Write the proportion equation
122,135.78 : 184,035.68 = 100,435.28 : x - Step 2: Convert to fraction form
122,135.78/184,035.68 = 100,435.28/x - Step 3: Cross multiply
122,135.78x = 184,035.68 × 100,435.28 - Step 4: Simplify right side
122,135.78x = 18,483,674,005.07 - Step 5: Solve for x
x = 18,483,674,005.07/122,135.78 - Step 6: Final answer
x = 151,337.09
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.