Finding the Fourth Proportional to 115,495.60, 159,395.16 and 70,163.68
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Solution
The fourth proportional to 115,495.60, 159,395.16 and 70,163.68 is: 96,832.70
Step by Step Solution
- Step 1: Write the proportion equation
115,495.60 : 159,395.16 = 70,163.68 : x - Step 2: Convert to fraction form
115,495.60/159,395.16 = 70,163.68/x - Step 3: Cross multiply
115,495.60x = 159,395.16 × 70,163.68 - Step 4: Simplify right side
115,495.60x = 11,183,750,999.79 - Step 5: Solve for x
x = 11,183,750,999.79/115,495.60 - Step 6: Final answer
x = 96,832.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.