Finding the Fourth Proportional to 134,905.10, 202,357.65 and 84,822.80
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Solution
The fourth proportional to 134,905.10, 202,357.65 and 84,822.80 is: 127,234.20
Step by Step Solution
- Step 1: Write the proportion equation
134,905.10 : 202,357.65 = 84,822.80 : x - Step 2: Convert to fraction form
134,905.10/202,357.65 = 84,822.80/x - Step 3: Cross multiply
134,905.10x = 202,357.65 × 84,822.80 - Step 4: Simplify right side
134,905.10x = 17,164,542,474.42 - Step 5: Solve for x
x = 17,164,542,474.42/134,905.10 - Step 6: Final answer
x = 127,234.20
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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.