Finding the Fourth Proportional to 106,540.02, 159,657.75 and 78,237.99
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Solution
The fourth proportional to 106,540.02, 159,657.75 and 78,237.99 is: 117,245.16
Step by Step Solution
- Step 1: Write the proportion equation
106,540.02 : 159,657.75 = 78,237.99 : x - Step 2: Convert to fraction form
106,540.02/159,657.75 = 78,237.99/x - Step 3: Cross multiply
106,540.02x = 159,657.75 × 78,237.99 - Step 4: Simplify right side
106,540.02x = 12,491,301,447.92 - Step 5: Solve for x
x = 12,491,301,447.92/106,540.02 - Step 6: Final answer
x = 117,245.16
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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.