Finding the Fourth Proportional to 117,289.21, 175,906.83 and 69,917.68
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Solution
The fourth proportional to 117,289.21, 175,906.83 and 69,917.68 is: 104,860.43
Step by Step Solution
- Step 1: Write the proportion equation
117,289.21 : 175,906.83 = 69,917.68 : x - Step 2: Convert to fraction form
117,289.21/175,906.83 = 69,917.68/x - Step 3: Cross multiply
117,289.21x = 175,906.83 × 69,917.68 - Step 4: Simplify right side
117,289.21x = 12,298,996,570.22 - Step 5: Solve for x
x = 12,298,996,570.22/117,289.21 - Step 6: Final answer
x = 104,860.43
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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.