Finding the Fourth Proportional to 106,038.11, 159,040.67 and 68,861.75
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Solution
The fourth proportional to 106,038.11, 159,040.67 and 68,861.75 is: 103,281.90
Step by Step Solution
- Step 1: Write the proportion equation
106,038.11 : 159,040.67 = 68,861.75 : x - Step 2: Convert to fraction form
106,038.11/159,040.67 = 68,861.75/x - Step 3: Cross multiply
106,038.11x = 159,040.67 × 68,861.75 - Step 4: Simplify right side
106,038.11x = 10,951,817,717.86 - Step 5: Solve for x
x = 10,951,817,717.86/106,038.11 - Step 6: Final answer
x = 103,281.90
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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.