Finding the Fourth Proportional to 68,128.80, 101,998.80 and 66,184.80
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Solution
The fourth proportional to 68,128.80, 101,998.80 and 66,184.80 is: 99,088.35
Step by Step Solution
- Step 1: Write the proportion equation
68,128.80 : 101,998.80 = 66,184.80 : x - Step 2: Convert to fraction form
68,128.80/101,998.80 = 66,184.80/x - Step 3: Cross multiply
68,128.80x = 101,998.80 × 66,184.80 - Step 4: Simplify right side
68,128.80x = 6,750,770,178.24 - Step 5: Solve for x
x = 6,750,770,178.24/68,128.80 - Step 6: Final answer
x = 99,088.35
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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.