Finding the Fourth Proportional to 106,440.41, 159,633.36 and 31,543.07
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Solution
The fourth proportional to 106,440.41, 159,633.36 and 31,543.07 is: 47,306.52
Step by Step Solution
- Step 1: Write the proportion equation
106,440.41 : 159,633.36 = 31,543.07 : x - Step 2: Convert to fraction form
106,440.41/159,633.36 = 31,543.07/x - Step 3: Cross multiply
106,440.41x = 159,633.36 × 31,543.07 - Step 4: Simplify right side
106,440.41x = 5,035,325,450.65 - Step 5: Solve for x
x = 5,035,325,450.65/106,440.41 - Step 6: Final answer
x = 47,306.52
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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.