Finding the Fourth Proportional to 121,283.20, 181,924.80 and 88,235.20
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Solution
The fourth proportional to 121,283.20, 181,924.80 and 88,235.20 is: 132,352.80
Step by Step Solution
- Step 1: Write the proportion equation
121,283.20 : 181,924.80 = 88,235.20 : x - Step 2: Convert to fraction form
121,283.20/181,924.80 = 88,235.20/x - Step 3: Cross multiply
121,283.20x = 181,924.80 × 88,235.20 - Step 4: Simplify right side
121,283.20x = 16,052,171,112.96 - Step 5: Solve for x
x = 16,052,171,112.96/121,283.20 - Step 6: Final answer
x = 132,352.80
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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.