Finding the Fourth Proportional to 133,819.13, 184,670.40 and 74,203.13
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Solution
The fourth proportional to 133,819.13, 184,670.40 and 74,203.13 is: 102,400.32
Step by Step Solution
- Step 1: Write the proportion equation
133,819.13 : 184,670.40 = 74,203.13 : x - Step 2: Convert to fraction form
133,819.13/184,670.40 = 74,203.13/x - Step 3: Cross multiply
133,819.13x = 184,670.40 × 74,203.13 - Step 4: Simplify right side
133,819.13x = 13,703,120,775 - Step 5: Solve for x
x = 13,703,120,775/133,819.13 - Step 6: Final answer
x = 102,400.32
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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.