Finding the Fourth Proportional to 110,289.80, 165,434.70 and 43,745.80
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Solution
The fourth proportional to 110,289.80, 165,434.70 and 43,745.80 is: 65,618.70
Step by Step Solution
- Step 1: Write the proportion equation
110,289.80 : 165,434.70 = 43,745.80 : x - Step 2: Convert to fraction form
110,289.80/165,434.70 = 43,745.80/x - Step 3: Cross multiply
110,289.80x = 165,434.70 × 43,745.80 - Step 4: Simplify right side
110,289.80x = 7,237,073,299.26 - Step 5: Solve for x
x = 7,237,073,299.26/110,289.80 - Step 6: Final answer
x = 65,618.70
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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.