Finding the Fourth Proportional to 129,289.35, 193,533.08 and 69,977.91
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Solution
The fourth proportional to 129,289.35, 193,533.08 and 69,977.91 is: 104,749.85
Step by Step Solution
- Step 1: Write the proportion equation
129,289.35 : 193,533.08 = 69,977.91 : x - Step 2: Convert to fraction form
129,289.35/193,533.08 = 69,977.91/x - Step 3: Cross multiply
129,289.35x = 193,533.08 × 69,977.91 - Step 4: Simplify right side
129,289.35x = 13,543,040,454.26 - Step 5: Solve for x
x = 13,543,040,454.26/129,289.35 - Step 6: Final answer
x = 104,749.85
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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.