Finding the Fourth Proportional to 127,125.76, 190,774.08 and 68,003.20
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Solution
The fourth proportional to 127,125.76, 190,774.08 and 68,003.20 is: 102,050.50
Step by Step Solution
- Step 1: Write the proportion equation
127,125.76 : 190,774.08 = 68,003.20 : x - Step 2: Convert to fraction form
127,125.76/190,774.08 = 68,003.20/x - Step 3: Cross multiply
127,125.76x = 190,774.08 × 68,003.20 - Step 4: Simplify right side
127,125.76x = 12,973,247,917.06 - Step 5: Solve for x
x = 12,973,247,917.06/127,125.76 - Step 6: Final answer
x = 102,050.50
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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.