Finding the Fourth Proportional to 128,933.83, 193,396.45 and 53,029.75
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Solution
The fourth proportional to 128,933.83, 193,396.45 and 53,029.75 is: 79,542.85
Step by Step Solution
- Step 1: Write the proportion equation
128,933.83 : 193,396.45 = 53,029.75 : x - Step 2: Convert to fraction form
128,933.83/193,396.45 = 53,029.75/x - Step 3: Cross multiply
128,933.83x = 193,396.45 × 53,029.75 - Step 4: Simplify right side
128,933.83x = 10,255,764,162.26 - Step 5: Solve for x
x = 10,255,764,162.26/128,933.83 - Step 6: Final answer
x = 79,542.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.