Finding the Fourth Proportional to 134,876.10, 202,314.15 and 84,793.80
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Solution
The fourth proportional to 134,876.10, 202,314.15 and 84,793.80 is: 127,190.70
Step by Step Solution
- Step 1: Write the proportion equation
134,876.10 : 202,314.15 = 84,793.80 : x - Step 2: Convert to fraction form
134,876.10/202,314.15 = 84,793.80/x - Step 3: Cross multiply
134,876.10x = 202,314.15 × 84,793.80 - Step 4: Simplify right side
134,876.10x = 17,154,985,572.27 - Step 5: Solve for x
x = 17,154,985,572.27/134,876.10 - Step 6: Final answer
x = 127,190.70
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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.