Finding the Fourth Proportional to 136,543.80, 204,815.70 and 113,215.80
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Solution
The fourth proportional to 136,543.80, 204,815.70 and 113,215.80 is: 169,823.70
Step by Step Solution
- Step 1: Write the proportion equation
136,543.80 : 204,815.70 = 113,215.80 : x - Step 2: Convert to fraction form
136,543.80/204,815.70 = 113,215.80/x - Step 3: Cross multiply
136,543.80x = 204,815.70 × 113,215.80 - Step 4: Simplify right side
136,543.80x = 23,188,373,328.06 - Step 5: Solve for x
x = 23,188,373,328.06/136,543.80 - Step 6: Final answer
x = 169,823.70
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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.