Finding the Fourth Proportional to 134,867.80, 202,301.70 and 82,379.80
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Solution
The fourth proportional to 134,867.80, 202,301.70 and 82,379.80 is: 123,569.70
Step by Step Solution
- Step 1: Write the proportion equation
134,867.80 : 202,301.70 = 82,379.80 : x - Step 2: Convert to fraction form
134,867.80/202,301.70 = 82,379.80/x - Step 3: Cross multiply
134,867.80x = 202,301.70 × 82,379.80 - Step 4: Simplify right side
134,867.80x = 16,665,573,585.66 - Step 5: Solve for x
x = 16,665,573,585.66/134,867.80 - Step 6: Final answer
x = 123,569.70
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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.