Finding the Fourth Proportional to 106,381.96, 159,576.99 and 39,815.08
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Solution
The fourth proportional to 106,381.96, 159,576.99 and 39,815.08 is: 59,724.14
Step by Step Solution
- Step 1: Write the proportion equation
106,381.96 : 159,576.99 = 39,815.08 : x - Step 2: Convert to fraction form
106,381.96/159,576.99 = 39,815.08/x - Step 3: Cross multiply
106,381.96x = 159,576.99 × 39,815.08 - Step 4: Simplify right side
106,381.96x = 6,353,570,623.01 - Step 5: Solve for x
x = 6,353,570,623.01/106,381.96 - Step 6: Final answer
x = 59,724.14
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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.