Finding the Fourth Proportional to 128,177.01, 192,265.99 and 39,429.90
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Solution
The fourth proportional to 128,177.01, 192,265.99 and 39,429.90 is: 59,145.00
Step by Step Solution
- Step 1: Write the proportion equation
128,177.01 : 192,265.99 = 39,429.90 : x - Step 2: Convert to fraction form
128,177.01/192,265.99 = 39,429.90/x - Step 3: Cross multiply
128,177.01x = 192,265.99 × 39,429.90 - Step 4: Simplify right side
128,177.01x = 7,581,028,660.53 - Step 5: Solve for x
x = 7,581,028,660.53/128,177.01 - Step 6: Final answer
x = 59,145.00
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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.