Finding the Fourth Proportional to 126,753.13, 190,316.60 and 70,702.75
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Solution
The fourth proportional to 126,753.13, 190,316.60 and 70,702.75 is: 106,158.37
Step by Step Solution
- Step 1: Write the proportion equation
126,753.13 : 190,316.60 = 70,702.75 : x - Step 2: Convert to fraction form
126,753.13/190,316.60 = 70,702.75/x - Step 3: Cross multiply
126,753.13x = 190,316.60 × 70,702.75 - Step 4: Simplify right side
126,753.13x = 13,455,905,685.55 - Step 5: Solve for x
x = 13,455,905,685.55/126,753.13 - Step 6: Final answer
x = 106,158.37
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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.