Finding the Fourth Proportional to 128,088.29, 192,173.41 and 61,533.08
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Solution
The fourth proportional to 128,088.29, 192,173.41 and 61,533.08 is: 92,319.31
Step by Step Solution
- Step 1: Write the proportion equation
128,088.29 : 192,173.41 = 61,533.08 : x - Step 2: Convert to fraction form
128,088.29/192,173.41 = 61,533.08/x - Step 3: Cross multiply
128,088.29x = 192,173.41 × 61,533.08 - Step 4: Simplify right side
128,088.29x = 11,825,022,729.08 - Step 5: Solve for x
x = 11,825,022,729.08/128,088.29 - Step 6: Final answer
x = 92,319.31
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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.