Finding the Fourth Proportional to 129,779.80, 194,237.70 and 94,139.80
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Solution
The fourth proportional to 129,779.80, 194,237.70 and 94,139.80 is: 140,896.34
Step by Step Solution
- Step 1: Write the proportion equation
129,779.80 : 194,237.70 = 94,139.80 : x - Step 2: Convert to fraction form
129,779.80/194,237.70 = 94,139.80/x - Step 3: Cross multiply
129,779.80x = 194,237.70 × 94,139.80 - Step 4: Simplify right side
129,779.80x = 18,285,498,230.46 - Step 5: Solve for x
x = 18,285,498,230.46/129,779.80 - Step 6: Final answer
x = 140,896.34
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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.