Finding the Fourth Proportional to 134,902.10, 202,353.15 and 84,819.80
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Solution
The fourth proportional to 134,902.10, 202,353.15 and 84,819.80 is: 127,229.70
Step by Step Solution
- Step 1: Write the proportion equation
134,902.10 : 202,353.15 = 84,819.80 : x - Step 2: Convert to fraction form
134,902.10/202,353.15 = 84,819.80/x - Step 3: Cross multiply
134,902.10x = 202,353.15 × 84,819.80 - Step 4: Simplify right side
134,902.10x = 17,163,553,712.37 - Step 5: Solve for x
x = 17,163,553,712.37/134,902.10 - Step 6: Final answer
x = 127,229.70
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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.