Finding the Fourth Proportional to 128,280.74, 192,423.99 and 44,040.26
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Solution
The fourth proportional to 128,280.74, 192,423.99 and 44,040.26 is: 66,061.38
Step by Step Solution
- Step 1: Write the proportion equation
128,280.74 : 192,423.99 = 44,040.26 : x - Step 2: Convert to fraction form
128,280.74/192,423.99 = 44,040.26/x - Step 3: Cross multiply
128,280.74x = 192,423.99 × 44,040.26 - Step 4: Simplify right side
128,280.74x = 8,474,402,549.84 - Step 5: Solve for x
x = 8,474,402,549.84/128,280.74 - Step 6: Final answer
x = 66,061.38
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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.