Finding the Fourth Proportional to 139,238.24, 192,148.92 and 75,576.02
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Solution
The fourth proportional to 139,238.24, 192,148.92 and 75,576.02 is: 104,294.99
Step by Step Solution
- Step 1: Write the proportion equation
139,238.24 : 192,148.92 = 75,576.02 : x - Step 2: Convert to fraction form
139,238.24/192,148.92 = 75,576.02/x - Step 3: Cross multiply
139,238.24x = 192,148.92 × 75,576.02 - Step 4: Simplify right side
139,238.24x = 14,521,849,660.15 - Step 5: Solve for x
x = 14,521,849,660.15/139,238.24 - Step 6: Final answer
x = 104,294.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.