Finding the Fourth Proportional to 128,362.28, 192,576.36 and 53,457.53
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Solution
The fourth proportional to 128,362.28, 192,576.36 and 53,457.53 is: 80,200.01
Step by Step Solution
- Step 1: Write the proportion equation
128,362.28 : 192,576.36 = 53,457.53 : x - Step 2: Convert to fraction form
128,362.28/192,576.36 = 53,457.53/x - Step 3: Cross multiply
128,362.28x = 192,576.36 × 53,457.53 - Step 4: Simplify right side
128,362.28x = 10,294,656,541.99 - Step 5: Solve for x
x = 10,294,656,541.99/128,362.28 - Step 6: Final answer
x = 80,200.01
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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.