Finding the Fourth Proportional to 126,327.36, 189,390.42 and 72,958.80
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Solution
The fourth proportional to 126,327.36, 189,390.42 and 72,958.80 is: 109,380.09
Step by Step Solution
- Step 1: Write the proportion equation
126,327.36 : 189,390.42 = 72,958.80 : x - Step 2: Convert to fraction form
126,327.36/189,390.42 = 72,958.80/x - Step 3: Cross multiply
126,327.36x = 189,390.42 × 72,958.80 - Step 4: Simplify right side
126,327.36x = 13,817,697,774.70 - Step 5: Solve for x
x = 13,817,697,774.70/126,327.36 - Step 6: Final answer
x = 109,380.09
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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.