Finding the Fourth Proportional to 106,563.70, 159,615.15 and 94,890.10
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Solution
The fourth proportional to 106,563.70, 159,615.15 and 94,890.10 is: 142,129.99
Step by Step Solution
- Step 1: Write the proportion equation
106,563.70 : 159,615.15 = 94,890.10 : x - Step 2: Convert to fraction form
106,563.70/159,615.15 = 94,890.10/x - Step 3: Cross multiply
106,563.70x = 159,615.15 × 94,890.10 - Step 4: Simplify right side
106,563.70x = 15,145,897,545.02 - Step 5: Solve for x
x = 15,145,897,545.02/106,563.70 - Step 6: Final answer
x = 142,129.99
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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.