Finding the Fourth Proportional to 133,578.24, 184,285.20 and 79,843.68
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Solution
The fourth proportional to 133,578.24, 184,285.20 and 79,843.68 is: 110,152.74
Step by Step Solution
- Step 1: Write the proportion equation
133,578.24 : 184,285.20 = 79,843.68 : x - Step 2: Convert to fraction form
133,578.24/184,285.20 = 79,843.68/x - Step 3: Cross multiply
133,578.24x = 184,285.20 × 79,843.68 - Step 4: Simplify right side
133,578.24x = 14,714,008,537.54 - Step 5: Solve for x
x = 14,714,008,537.54/133,578.24 - Step 6: Final answer
x = 110,152.74
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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.