Finding the Fourth Proportional to 128,351.69, 192,533.00 and 39,603.23
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Solution
The fourth proportional to 128,351.69, 192,533.00 and 39,603.23 is: 59,406.52
Step by Step Solution
- Step 1: Write the proportion equation
128,351.69 : 192,533.00 = 39,603.23 : x - Step 2: Convert to fraction form
128,351.69/192,533.00 = 39,603.23/x - Step 3: Cross multiply
128,351.69x = 192,533.00 × 39,603.23 - Step 4: Simplify right side
128,351.69x = 7,624,927,520.91 - Step 5: Solve for x
x = 7,624,927,520.91/128,351.69 - Step 6: Final answer
x = 59,406.52
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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.