Finding the Fourth Proportional to 128,350.80, 192,497.40 and 61,756.92
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Solution
The fourth proportional to 128,350.80, 192,497.40 and 61,756.92 is: 92,621.52
Step by Step Solution
- Step 1: Write the proportion equation
128,350.80 : 192,497.40 = 61,756.92 : x - Step 2: Convert to fraction form
128,350.80/192,497.40 = 61,756.92/x - Step 3: Cross multiply
128,350.80x = 192,497.40 × 61,756.92 - Step 4: Simplify right side
128,350.80x = 11,888,046,532.01 - Step 5: Solve for x
x = 11,888,046,532.01/128,350.80 - Step 6: Final answer
x = 92,621.52
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1.5x scale
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.