Finding the Fourth Proportional to 129,376.06, 194,002.70 and 45,125.99
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Solution
The fourth proportional to 129,376.06, 194,002.70 and 45,125.99 is: 67,667.56
Step by Step Solution
- Step 1: Write the proportion equation
129,376.06 : 194,002.70 = 45,125.99 : x - Step 2: Convert to fraction form
129,376.06/194,002.70 = 45,125.99/x - Step 3: Cross multiply
129,376.06x = 194,002.70 × 45,125.99 - Step 4: Simplify right side
129,376.06x = 8,754,562,886.41 - Step 5: Solve for x
x = 8,754,562,886.41/129,376.06 - Step 6: Final answer
x = 67,667.56
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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.