Finding the Fourth Proportional to 135,045.60, 202,568.40 and 84,963.30
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Solution
The fourth proportional to 135,045.60, 202,568.40 and 84,963.30 is: 127,444.95
Step by Step Solution
- Step 1: Write the proportion equation
135,045.60 : 202,568.40 = 84,963.30 : x - Step 2: Convert to fraction form
135,045.60/202,568.40 = 84,963.30/x - Step 3: Cross multiply
135,045.60x = 202,568.40 × 84,963.30 - Step 4: Simplify right side
135,045.60x = 17,210,879,739.72 - Step 5: Solve for x
x = 17,210,879,739.72/135,045.60 - Step 6: Final answer
x = 127,444.95
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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.