Finding the Fourth Proportional to 103,126.08, 142,311.60 and 60,102.84
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Solution
The fourth proportional to 103,126.08, 142,311.60 and 60,102.84 is: 82,940.53
Step by Step Solution
- Step 1: Write the proportion equation
103,126.08 : 142,311.60 = 60,102.84 : x - Step 2: Convert to fraction form
103,126.08/142,311.60 = 60,102.84/x - Step 3: Cross multiply
103,126.08x = 142,311.60 × 60,102.84 - Step 4: Simplify right side
103,126.08x = 8,553,331,324.94 - Step 5: Solve for x
x = 8,553,331,324.94/103,126.08 - Step 6: Final answer
x = 82,940.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.