Finding the Fourth Proportional to 135,037.20, 202,555.80 and 46,278.80
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Solution
The fourth proportional to 135,037.20, 202,555.80 and 46,278.80 is: 69,418.20
Step by Step Solution
- Step 1: Write the proportion equation
135,037.20 : 202,555.80 = 46,278.80 : x - Step 2: Convert to fraction form
135,037.20/202,555.80 = 46,278.80/x - Step 3: Cross multiply
135,037.20x = 202,555.80 × 46,278.80 - Step 4: Simplify right side
135,037.20x = 9,374,039,357.04 - Step 5: Solve for x
x = 9,374,039,357.04/135,037.20 - Step 6: Final answer
x = 69,418.20
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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.